Friday, July 31, 2009
Thursday, July 30, 2009
Tuesday, July 28, 2009
Java Basics
- 01 - Java - An Overview
- A brief introduction, history and summary of the Java System
- 02 - Java Concepts
- The basic concepts and syntax of Java
- 03 - Java Installation and Simple Programs
- Steps in installing Java and writing simple programs
- 04 - Class and Object Concepts
- The general structure of a Java class file and other new concepts
- 05 - Files, Collections, and Exceptions
- Essential Java classes that contains ways to work with files, groups and errors
- 06 - Threads and GUIs
- How threads and GUIs work in the Java program
- 07 - A Simple GUI Application with Thread Management
- An implementation of an AWT and Swing based GUI
- 08 - Java on the World Wide Web
- How a Java application works on the World Wide Web
- 09 - Java Servlet Basics
- How to construct scripts and servlets that work with the fruit class
- 10 - Java - Database and XML Input
- The process of data input from different sources
Java Notes: Table of Contents
Java Notes. These Java programming notes are written to fill in missing or weak topics in textbooks that I've taught from. Many pages are useful for reference, but not as an ordered tutorial. Some pages are still rough drafts, but I'm slowly working on fixing them. notes-java-2007-04-25.zip [2.4 MB].
Java Basics. I've started writing a more coherent tutorial called Java Basics. In addition to lessons, there is also commentary which explains why things are done the way they are. JavaBasics-2007-04-25.zip [0.4 MB].
Background
Java ToolsDeployment
Principles and practices
Summaries
Introductory Example Programs
Example GUI Programs
| LanguageControl Flow
Classes
IO
Algorithms
Other
| Data
| GUI
GUI - Appearance
GUI - Low level
|
JAVA :: Language Basics
Variables under java language
You've already learned that objects store their state in fields. However, the Java programming language also uses the term "variable" as well. This section discusses this relationship, plus variable naming rules and conventions, basic data types (primitive types, character strings, and arrays), default values, and literals.
Operators for java
This section describes the operators of the Java programming language. It presents the most commonly-used operators first, and the less commonly-used operators last. Each discussion includes code samples that you can compile and run.
Expressions, Statements, and Blocks of language
Operators may be used in building expressions, which compute values; expressions are the core components of statements; statements may be grouped into blocks. This section discusses expressions, statements, and blocks using example code that you've already seen.
Control Flow Statements of java
This section describes the control flow statements supported by the Java programming language. It covers the decisions-making, looping, and branching statements that enable your programs to conditionally execute particular blocks of code.
Friday, July 24, 2009
Amazing Body Facts for computer operators
1.The average red blood cell lives for 120 days.
2.There are 2.5 trillion (give or take) of red blood cells in your body at any moment. To maintain this number, about two and a half million new ones need to be produced every second by your bone marrow.That' s like a new population of the city of
3
Considering all the tissues and cells in your body, 25 million new cells are being produced each second. That's a little less than the population of
4
A red blood cell can circumnavigate your body in under 20 seconds.
5
Nerve Impulses travel at over 400 km/hr (25 mi/hr).
6
A sneeze generates a wind of 166 km/hr (100 mi/hr), and acough moves out at 100 km/hr (60 mi/hr).
7
Our heart beats around 100,00 times every day.
8
Our blood is on a 60,000-mile journey.
9
Our eyes can distinguish up to one million colour surfaces and take in more information than the largest telescope known to man.
10
Our lungs inhale over two million litres of air every day, without even thinking. They are large enough to cover a tennis court.
11
We give birth to 100 billion red cells every day.
12
When we touch something, we send a message to our brain at 124 mph
13
We exercise at least 30 muscles when we smile.
14
We are about 70 percent water.
15
We make one litre of saliva a day.
16
Our nose is our personal air-conditioning system: it warms cold air, cools hot air and filters impurities.
17
In one square inch of our hand we have nine feet of blood vessels, 600 pain sensors, 9000 nerve endings, 36 heat sensors and 75 pressure sensors.
18
We have copper, zinc, cobalt, calcium, manganese, phosphates, nickel and silicon in our bodies.
19
It is believed that the main purpose of eyebrows is to keep sweat out of the eyes.
20
A person can expect to breathe in about 40 pounds of dust over his/her lifetime.
21
There are more living organisms on the skin of a single human being than there are human beings on the surface of the earth.
22
From the age of thirty, humans gradually begin to shrink in size.
23
Your body contains enough iron to make a spike strong enough to hold your weight.
24
The surface area of a human lung is equal to that of a tennis court.
25
Most people have lost fifty per cent of their taste buds by the time they reach the age of sixty.
26
The amount of carbon in the human body is enough to fill about 9,000 'lead' pencils.
27
One square inch of human skin contains 625 sweat glands.
28
When you blush, your stomach lining also reddens.
29
The human body has less muscles in it than a caterpillar.
30
If you could save all the times your eyes blink in one life time and use them all at once you would see blackness for 1.2 years!
31
The life span of a taste bud is ten days.
32
It's impossible to sneeze with your eyes open.
33
Give a tennis ball a good, hard squeeze. You're using about the same amount of force your heart uses to pump blood out to the body.
34
The aorta, the largest artery in the body, is almost the diameter of a garden hose.
35
Capillaries, on the other hand, are so small that it takes ten of them to equal the thickness of a human hair.
36
Your body has about 5.6 liters (6 quarts) of blood. This 5.6 liters of blood circulates through the body three times every minute.
37
The heart pumps about 1 million barrels of blood during an average lifetime--that' s enough to fill more than 3 super tankers.
38
Babies start dreaming even before they're born.
39
The human body can function without a brain.
40
Humans are the only primates that don't have pigment in the palms of their hands.
41
10% of human dry weight comes from bacteria.
42
There is more bacteria in your mouth than the human population of the
43
Every square inch of the human body has an average of 32 million bacteria on it.
44
A fetus acquires fingerprints at the age of three months
45
You sit on the biggest muscle in your body, the gluteus maximus a.k.a. the butt. Each of the two cheeky muscles tips the scales at about two pounds (not including the overlying fat layer).
46
The tiniest muscle, the stapedius of the middle ear , is just one-fifth of an inch long.
47
The average human head weighs about 10 pounds.
48
The average human brain weighs three pounds.
49
The DNA helix measures 80 billionths of an inch wide.
50
Your eyeballs are three and a half percent salt.
51
Head lice actually prefer to live on clean heads, not on dirty ones.
52
If Barbie were life-size, her measurements would be 39-23-33. She would stand seven feet, two inches tall and have a neck twice the length of a normal human's neck.
53
It takes about 20 seconds for a red blood cell to circle the whole body.
54
An average human drinks about 16,000 gallons of water in a lifetime.
55
Beards are the fastest growing hairs on the human body. If the average man never trimmed his beard, it would grow to nearly 30 feet long in his lifetime.
56
Humans shed about 600,000 particles of skin every hour - about 1.5 pounds a year. By 70 years of age, an average person will have lost 105 pounds of skin.
57
It only takes 7lbs of pressure to rip your ear off.
58
When you sneeze, all your bodily functions stop - even your heart.
59
Human teeth are almost as hard as rocks.
60
You burn more calories sleeping than you do watching T.V.
61
Our eyes never grow, and our nose and ears never stop growing.
62
The thumbnail grows the slowest; the middle nail grows the fastest
63
Children grow faster in the springtime.
64
Women blink nearly twice as much as men.
65
You can only smell 1/20th as well as a dog.
66
People are the only animals in the world who cry tears.
67
Every month you grow a brand new outer layer of skin..."a new you!".
68
In your very own lifetime, you'll produce enough spit to fill two swimming pools.
69
You breathe in about 7 quarts of air every minute. Good ! Air is cost free..
70
Your dad sweats enough each day to fill up a 6 pack of soda cans...and then some.
71
Every time you lick a stamp, you're consuming 1/10 of a calorie.
72
If you yelled for 8 years, 7 months and 6 days, you would have produced enough sound energy to heat one cup of coffee.
73
If you toot consistently for 6 years and 9 months, enough gas is produced to create the energy of an atomic bomb.
74
The human heart creates enough pressure when it pumps blood, that it could squirt blood 30 feet.
75
Banging your head against a wall uses 150 calories an hour.
76
On average people fear spiders more than they do death.
77
Americans on the average eat 18 acres of pizza every day.
78
Did you know that you are more likely to be killed by a champagne cork than by a poisonous spider?
79
Right-handed people live, on average, nine years longer than left-handed people do.
80
If you blink one eye you move over 200 muscles.
81
The length of your foot is the same as that of your forearm between your wrist and the inside of your elbow.
82
In 24 hours, the blood in the body travels a total of 12,000 miles - that's four times the width of
83
The human gut contains about 1kg (2.2 lbs) of bacteria. In fact, there are more bacteria growing in and on the body than there are human cells.
84
Humans have more facial muscles than any other animal on earth - 22 on each side of the face.
85
Before their first birthday, average babies will have dribbled 255 pints of saliva. By the time they're two years old, they will have crawled 93 miles.
86
The human hand contains three main nerves, two major arteries and 27 different bones - more of the body is devoted to controlling the hands than any other part of the body.
87
In the average lifetime, we spend five years eating and we consume around 7,000 times our own weight in food.
88
When we go to sleep and enter REM (Rapid Eye Movement),our bodies become completely paralysed as areas of the brain that control movement are de-activated. It is this that stops us falling out of bed.
89
By the time a woman has reached her 60s, she will have released around 450 baby making eggs
90
When full, the human bladder can hold two pints of urine.
81
The length of your foot is the same as that of your forearm between your wrist and the inside of your elbow.
82
In 24 hours, the blood in the body travels a total of 12,000 miles - that's four times the width of
83
The human gut contains about 1kg (2.2 lbs) of bacteria. In fact, there are more bacteria growing in and on the body than there are human cells.
84
Humans have more facial muscles than any other animal on earth - 22 on each side of the face.
85
Before their first birthday, average babies will have dribbled 255 pints of saliva. By the time they're two years old, they will have crawled 93 miles.
86
The human hand contains three main nerves, two major arteries and 27 different bones - more of the body is devoted to controlling the hands than any other part of the body.
87
In the average lifetime, we spend five years eating and we consume around 7,000 times our own weight in food.
88
When we go to sleep and enter REM (Rapid Eye Movement),our bodies become completely paralysed as areas of the brain that control movement are de-activated. It is this that stops us falling out of bed.
89
By the time a woman has reached her 60s, she will have released around 450 baby making eggs
90
When full, the human bladder can hold two pints of urine.
81
The length of your foot is the same as that of your forearm between your wrist and the inside of your elbow.
82
In 24 hours, the blood in the body travels a total of 12,000 miles - that's four times the width of
83
The human gut contains about 1kg (2.2 lbs) of bacteria. In fact, there are more bacteria growing in and on the body than there are human cells.
84
Humans have more facial muscles than any other animal on earth - 22 on each side of the face.
85
Before their first birthday, average babies will have dribbled 255 pints of saliva. By the time they're two years old, they will have crawled 93 miles.
86
The human hand contains three main nerves, two major arteries and 27 different bones - more of the body is devoted to controlling the hands than any other part of the body.
87
In the average lifetime, we spend five years eating and we consume around 7,000 times our own weight in food.
88
When we go to sleep and enter REM (Rapid Eye Movement),our bodies become completely paralysed as areas of the brain that control movement are de-activated. It is this that stops us falling out of bed.
89
By the time a woman has reached her 60s, she will have released around 450 baby making eggs
90
When full, the human bladder can hold two pints of urine.
91
In a lifetime, a human being will grow six feet of nose hair and shed 42 lbs of dead skin.
92
A human being can look forward to having sex an average of 2,580 times with five different partners.
93
Skin can now be artificially grown.One amazing result of this is that the skin from one hand could be grown into enough to cover six football pitches..
94
There are 137 million light sensitive cells in the eye's retina and the fluid that fills the eye is changed 15 times a day.
95
Humans and dolphins are the only species that have sex for pleasure.
96
The average person falls asleep in seven minutes.
97
During your lifetime, you'll eat about 60,000 pounds of food, that's the weight of about 6 elephants!
98
In space, astronauts cannot cry, because there is no gravity, so the tears can't flow!
99
Your ribs move about 5 million times a year, every time you breathe!
100
Most dust particles in your house are made from dead skin!
101
A hard working adult sweats up to 4 gallons per day. Most of the sweat evaporates before a person realizes it's there.
103
At birth we have over 300 bones. As we grow up, some of the bones begin to fuse together as a result an adult has only 206 bones.
104
The human hand has 27 bones.
107
The femur/thigh bone is the longest bone in our body, it is about a quarter of ones height.
108
The human body has 230 movable and semi- movable joints
109
Our Brain has over 100 billion nerve cells.
110
The human skull is made up of 29 different bones.
111
A newborn baby's brain grows almost 3 times during the first year of life.
112
The left side of human brain controls the right side of the body and the right side of the brain controls the left side of the body.
113
The length of human blood vessel is such that it circles the globe 2 ½ times.
116
The human heart beats 30 million times a year.
117
80 hairs are likely to fall every day.
118
The muscles of the eye move more than 100,000 times a day..
119
We breathe 13 pints of air every minute.
120
Human skin has a tendency to shed 40 pounds of skin in lifetime.
121
Human kidneys have about 1 million nephrons that filters out liquids and wastes.
122
Our heart beats around 100,00 times every day.
123
Human blood is on a 60,000mile journey.
124
Fingernails contain keratin and they seem to be strongest component in the human body.
125
The human skin contains 45 miles of nerves.
126
Most people blink about 25 times per minute.
127
For every 2 weeks, the human stomach produces new layer of mucous lining, otherwise the stomach will digest itself.
128
An average of 17 muscles contracts for a smile.
129
Every person has a unique tongue print.
130
A sneeze moves out of our mouth at a speed of 100 meters per hour.
131
An average human eye blinks about 6,205, 000 times.
132
The tooth is the only part of the human body that cannot heal and repair by its own.
133
In one square inch of skin there are 4 yards of nerve fibers.
134
The human eye has the ability to distinguish about 1 million color surfaces.
135
A square inch of skin has 100 sweat glands.
138
The human ear can distinguish between hundreds of thousands of different sounds.
141
On an average the human scalp has about 100,000 hairs.
142
Nails of toes or fingers take about 6 months to grow from base to tip.
143
A square inch of skin consists of 1300 nerve cells.
144
On an average an individual produces human being consumes about 500 kg of food per year..
145
The adult human brain is about 2 % of total body weight.
146
On an average 1.7 liters of saliva produces each day.
147
In one square inch of skin, there are 3 million cells.
148
The human body consists of over 600 muscles.
149
As we get older, the brain loses almost one gram per year..
138
The human ear can distinguish between hundreds of thousands of different sounds.
141
On an average the human scalp has about 100,000 hairs.
142
Nails of toes or fingers take about 6 months to grow from base to tip.
143
A square inch of skin consists of 1300 nerve cells.
144
On an average an individual produces human being consumes about 500 kg of food per year.
145
The adult human brain is about 2 % of total body weight.
146
On an average 1.7 liters of saliva produces each day.
147
In one square inch of skin, there are 3 million cells.
148
The human body consists of over 600 muscles.
149
As we get older, the brain loses almost one gram per year..
150
Esophagus/or food pipe, which is the passage for the food we eat to the stomach, is approximately 25 cm long.
151
A square inch of skin consists of three yards of blood vessel.
152
There are about 13, 500,00 neurons in the human spinal cord.
153
The human tongue has 10,000 taste buds.
154
The cells of taste buds are constantly being renewed, roughly on every ten hours.
155
An average human head weighs about 8 pounds.
156
Our eyes are always the same size from birth, unlike our nose and ears.
157
The human body is composed of 80 percent of water.
158
The human eyeball is 24.5 mm long.
159
The total weight of skin in an average human adult is 61 pounds.
160
Taste buds are present inside the mouth and also at the roof of the mouth.
161
The human spinal cord is 45 cm long in men and 43 cm long in women.
162
The weight of human cerebellum is 150g.
163
The strongest muscles of the human body are masseters, which are present on either side of the mouth.
164
The human liver performs 500 different functions.
165
The heart muscles will stop working only when we die.
166
Children have more sensitive ears than adults.
167
Shivering is a way of trying to keep our body warm.
168
Humans have the ability to distinguish 4,000 to 10, 000 smells.
169
Every hour, the human eye can process 36,000 bits of information.
170
Nails and corneas are the only two tissues in the body that do not receive oxygen from blood.
171
The length of the finger indicates how fast the nail grows. The nail of the middle finger grows faster than others.
172
The human ears can hear in the frequency of 1,000 to 50, 000 hertz.
173
The total surface area of the human brain is about 25, 000 square cm's.
174
When the sounds are above 130 decibels, it causes pain to the ears.
175
There are around 100 receptors in each of our fingertips.
176
The weight of skin in a human adult is 4 to 5 kg.
177
The middle part of the back is the least sensitive part of our body.
178
Children have better sense of smell than adults.
179
The eyelashes shed by a human in his entire life is of 30 m of length.
180
After death, the body starts to dry out creating an illusion that the nails and hairs are growing even after death.
181
The surface of human skin is 6.5 square feet.
182
Every second, 15 million blood cells are destroyed in the human body.
183
An average human being will breathe about 23,040 times per hour.
184
The base of the spinal cord has a cluster of nerves, which are most sensitive.
185
The surface area of the human lung is equal to that of a tennis court.
186
When we reach 60 years of life, we lose 50 % of our taste buds.
187
Blinking of one eye causes movement of 200 muscles.
188
Platelets, which are one of the constituents of the blood is produced at the rate of 200 billion per day.
189
The sense of taste is the weakest of the five senses.
190
Humans have the ability to differentiate about 10, 000 odour.
191
It takes time for the newborn baby to learn to turn the pictures right side up, as it sees the world upside down in the beginning.
192
If human sense of smell is affected, sense of taste is also affected as the brain interprets signals from the nose and tongue.
193
There are around 1,200,000 optic fibers in the human eye.
194
The lens of the human eye is composed of 65 % of water and 3 % of protein.
195
We shut our eyes for 0.3 seconds, when we blink.
196
Color blind people find it hard to distinguish colors like green and red.
197
A blink of an eye lasts for 1/10th of a second.
198
Eyes are the only part of the human body that functions at 100 percent ability at any movement.
199
The human skin contains 280,000 heat receptors.
200
A drop of blood contains 250 million cells.
201
The liver is the largest and heaviest internal organ of the body and weighs about 1.6 kilos.
202
In the womb, the baby's body is covered by a thin layer of hair but as soon as the baby is born it disappears.
203
At birth every one is color blind.
204
Babies crawl to an average of 200 m a day.
205
The only jointless bone in the human body is the hyoid bone, which is present in the throat area.
206
A baby gender is determined after the first 6-8 weeks of pregnancy.
207
Eating Break fast helps to burn 5 to 20 percent of calories throughout the day.
208
The surface of human tongue is covered with 100 of tiny structures called papillae.
209
On an average, a persons left hand does 56 % of typing.
210
On an average the cough that comes out of our mouth is 60 m per hour.
211
A person can live without food for about a month, but only a week without water.
212
Threshold pain of women is 9 times stronger than men.
213
The palms of the hands and soles of the feet contain more sweat glands than other parts of the body.
214
10 % of men and 8 % of women are left-handed.
215
On an average the human body contains enough water to fill 1 gallon of a tank.
216
An average human body contains enough amount of fat to make seven bars of soap.
217
The human body releases growth hormones during sleep.
218
Red blood cells are about seven micrometer in diameter.
219
The thighbone is so strong that it withstands the axial load of about 1600-1800 kilos.
220
An average adult male brain weighs about 1375 grams.
221
On an average the weight of an adult female brain is about 1275 grams.
222
Only four percent of the brains cells work and the remaining cells are kept in reserve.
223
On an average thousands of neurons dies every day.
224
The human eye has 110-130 million receptors to perceive light.
225
The human eye contains five to seven million receptors for color perception.
226
The human eye cannot perceive a motionless image.
227
The average life span of a sperm is about 36 hours.
228
The life span of an ovule is about 12 - 24 hours.
229
Only one person in two billion will live for more than 115 years of life.
230
On an average, we speak about 5,000 words per day.
231
Intelligent people have more zinc and copper in their hair.
232
Liver is the only organ of the body, which regenerates itself completely even after being removed completely.
233
The human heart pumps 6,000 liters of blood daily through a man lifetime.
234
The human brain is capable of creating more ideas equivalent to that of the atoms of the universe.
235
Hair is the fastest growing tissue in the body, the next being bone marrow..
236
On an average, in an adult scalp 35m of hair fiber is produced every day.
237
An average scalp has 100,000 hairs.
238
The maximum length of hair can be 70 to 90 cm's.
239
The life span of hair is two to seven years.
240
Frequent washing of hair does not cause hair loss.
241
Brain uses 20 % of our body energy and makes up only 2 % of our body weight.
242
Any damage to brain cells cannot be repaired completely.
243
Human brain stops growing at the age of 18.
244
Male hairs are denser and grow faster than females.
245
Depending on the area of the human body, the thickness of the skin varies from ½ to 6 mm.
246
Tongue is the strongest muscle in the human body.
247
A Pair of feet contains about 250,000 sweat glands.
248
The human skin sheds and re-grows after every 27 days.
249
A Blind person looses only about 1/5th of vision.
250
One in every 2000 babies is born with a tooth.
251
Pregnancy in women lasts on average of about 270 days from the time of conception till birth.
252
Sneezing too hard can cause rib fracture and suppressing the sneeze can cause damage to the blood vessels of head or neck.
253
On freeze drying, 10 % of body weight is contributed by the micro organisms of our body.
254
About 80 % of ultra- violet rays from the sun can get through the cloud and can cause sunburn or tan even on a cloudy day.
255
The human stomach contains about 35 million small digestive glands..
256
The ovaries of a female contain about 600, 000 immature eggs at birth.
257
The ovaries of a female contain about 600, 000 immature eggs at birth.
258
The human body has 4 million pain sensitive structures.
259
Each lung contains 300-350 million respiratory units called alveoli.
260
Human blood contains 22,000 million cells.
261
Human skin is re-newed itself every 5 weeks.
262
A New stomach lining is formed every five days.
263
A human ear contains about 24,000 fibers in it.
264
The largest cell in the woman is the egg or ovum present that is released from the ovaries.
265
Women burn fat more slowly than men.
266
The leg bone is the fastest growing bone in the human body.
267
There are 22 bones in the human skull.
268
A muscle called the diaphragm controls the human breathing process.
269
The human brain is made up of more than 10 billion nerve cells and over 50 billion other cells and weighs about less than three pounds.
270
2/3 of the human body is made up of water.
271
Vitamin C and E fights against Dementia - a disease of forgetfulness in the elderly person.
272
Half a liter of water per day is lost through breathing..
273
Drinking coffee prevents Parkinson's disease.
274
Cold weather improves human memory and concentration.
275
Most of the bones in the human body constitutes about 3/4 of water.
276
An adult human body contains five to six quarts of blood and an infant has about one quart of blood.
277
Blind people understand spoken words quicker than sighted people.
278
A human lung contains about 700 million alveoli.
279
Vitamin E protects the brain cells from damage caused by alcohol consumption.
280
The human body contains more bacteria than the number of cells present in it.
281
The longest muscle in the human body is sartorius, which is present in the hip region and it is commonly called as tailors muscle.
282
Melanin, a pigment present in the skin is responsible for the color of the skin in a person.
283
Except the heart and lungs, all other parts of the body receive their blood supply from the largest artery of the body, the aorta.
284
The Pulmonary vein is the only vein in the human body that carries oxygenated blood while all the other veins of the body carry de-oxygenated blood.
285
The human blood is colorless. It is the hemoglobin; a pigment present in the red blood cells is responsible for the red color of the blood.
286
The smallest muscle in the human body is the stapedius, which is present deep inside the ear.
287
The human brain is very soft like that of butter.
288
A heartbeat is nothing but the sound produced by the closure of valves of the heart when the blood is pushed through its chamber.
289
Hold out your hand and make a fist. If you are a kid, the size of your heart is same as the size of your fist and if you are an adult it is about the same size as twice as your fist.
290
About 500 million sperm mature every day in a normal male adult.
291
Sixty percent of the human body nerve ends in the forehead and the hands.
292
A human body contains about 200,000 temperature detectors..
293
A human body has 500,000 touch detectors.
294
If all the alveoli from both lungs were spread flat they would cover an area nearly the size of a tennis court.
295
Each human eye contains 130 million light receptors.
296
The human scalp contains about 100,000 hair follicles, from which the hair grows.
297
The human skeleton renews once in every three months.
298
The human skin cells multiply every second to replace the worn ones.
299
The cells of the heart and brain do not multiply through out their lifetime.
300
The whole leg constitutes of 31 bones.
300
The whole leg constitutes of 31 bones.
301
The human skull and upper jaw consist of 21 bones.
302
When we see an image, the human eye captures the inverted image of it. It is the brains interpretation that makes us to see the upside down captured image in to a normal erect image.
303
An average person laughs about 15 times a day.
304
A womens heart beats faster than a mens.
305
The average person is about a quarter of an inch taller at night.
306
The food will get in to the stomach even if one stands on their head.
307
The eyes have the fastest reacting muscle in the whole body. It contracts in 1/100th of a second.
308
Almost every seven years, the human body replaces the equivalent of an entirely new skeleton.
309
Laughing and coughing creates more pressure on the spine than walking or standing.
310
The human heart continues to beat even though it is taken out of the body or cut in to pieces.
311
On an average, the human blood circulates the body for every 23 seconds.
312
In an average person, it takes 8 seconds for food to travel down the food pipe,3-5 hours in small intestine and 3-4 days in large intestine.
313
The brain continues to send out electric wave signals until approximately 37 hours after death.
314
People under 30 years of age take in double the amount of oxygen as people over 80 years of age.
315
The human body takes 6 hours to digest a high fat meal and it takes 2 hours for a carbohydrate meal.
316
On an average an adults heart pumps about 4,000 gallons of blood each day.
317
The muscles of our body constitute 40% of our body weight.
318
Iris is the part of the eye that determines the color of the eye.
319
Red Blood Cells comprise about 40 % of blood volume.
320
The human eye contains structures called Rods and cones. Rods register the shapes of images and respond to low levels of light and Cones responds to bright lights and registers the color of images.
321
We tend to get cold very easily in the winter season because we are indoors and in close proximity to each other.
322
Our Muscles often work in pairs so that they can pull in different or opposite directions.
323
The left side of the human heart is much thicker and stronger than the right side
324
Human blood is a make up of Red Blood Cells carrying oxygen, White Blood Cells that fight disease, Platelets that help the blood to clot and a liquid called plasma.
325
Human hair is made up of a body protein called keratin and it grows out of an opening of the skin called Follicle.
326
Every day 440 Gallons of blood flows through the kidney.
327
Red Blood Cells lasts only for about 4 months before they wear out.
328
Every minute 30,000 to 40, 000 dead skin cells fall from our body.
329
Straight hair lies flat because it is round and grows out of round follicles.
320
The human eye contains structures called Rods and cones. Rods register the shapes of images and respond to low levels of light and Cones responds to bright lights and registers the color of images.
321
We tend to get cold very easily in the winter season because we are indoors and in close proximity to each other.
322
Our Muscles often work in pairs so that they can pull in different or opposite directions.
323
The left side of the human heart is much thicker and stronger than the right side
324
Human blood is a make up of Red Blood Cells carrying oxygen, White Blood Cells that fight disease, Platelets that help the blood to clot and a liquid called plasma.
325
Human hair is made up of a body protein called keratin and it grows out of an opening of the skin called Follicle.
326
Every day 440 Gallons of blood flows through the kidney.
327
Red Blood Cells lasts only for about 4 months before they wear out.
328
Every minute 30,000 to 40, 000 dead skin cells fall from our body.
329
Straight hair lies flat because it is round and grows out of round follicles.
340
If the blood vessels were laid from end to end, they would reach around the world four times.
341
On an average, the human growth hormone, which is responsible for a person growth is produced at the rate of 500 micrograms per day at the age of twenty, 200 micrograms per day at the age of forty and 25 micrograms per day at the age of eighty.
342
It is estimated that there are over 1, 000,000,000, 000,000 connections in the human brain.
343
Human brain constitutes 60 % of white matter and 40 % of grey matter.
344
The average length of the human brain is about 167 mm and its average height is 93mm.
345
A human heart pumps about 1,314,000 gallons of blood a year through its blood vessels.
346
There are about 30 - 40 billion white blood cells present in our body to fight against infective and foreign organisms.
347
The human bladder can stretch to hold about 400ml of urine.
348
All the blood in our body passes 400 times through each kidney per day.
349
The human Liver consists of 100,000 tiny clusters called lobules.
350
On an average, the human stomach holds about 2 liters of contents.
351
We produce 1 liter of saliva per day.
352
The human sense of smell has the ability to identify the chemical smell of an object in one part per trillion of air.
353
An average capillary is only 1mm.
354
Humans have about 2 to 3 million sweat glands, which can produce up to 13 liters of sweat on a hot day.
355
On an average, 100, 000 to 1000, 000 chemical reactions takes place in our brain.
356
1,000,000,000, 000 nerve cells are present in each and every person head.
357
Liver cells take several years to replace themselves.
358
The white part of our fingernail is called as Lunula.
359
We are more likely to catch cold from a person by shaking his hand than from his sneeze.
360
The shoulder blade is connected to the body by means of 15 different muscles and it is not attached to a single bone.
361
The human brain uses 20 % of one blood and oxygen.
362
A healthy liver processes 720 liters of blood per day.
363
Plaque begins to form 6 hours after brushing our teeth.
364
59, 951 miles of blood vessels are present in our body.
365
Newborns will cry out without tears for the first three to six weeks.
366
The Nervous system transmits messages to the brain at the speed of 180 miles per hour.
367
The human nose can remember 50,000 different smells.
368
There is enough iron in the human body to make a small nail.
369
Women have better sense of smell than men
370
It is evaluated that the human eye can detect over 10,000,000 different colors.
371
The wax present inside the ear is made up of oil and sweat.
372
The female body is capable of giving birth to 35 children in one lifetime.
373
The spinal cord, which controls over 10 billion nerve cells, is less than two feet in length and its diameter is same as that of the index finger.
374
In the middle of the day, our eyesight will be sharper.
375
A newborn baby has more than 26 billion cells.
376
Sneezing clears dirt from the nose.
377
Inner ear is the main organ of balance.
378
Yawning brings more oxygen to the lungs.
379
Coughing clears mucous secretion from the throat.
380
Human speech is produced by the interaction of 72 muscles.
381
A New born baby loses about half of its nerve cells before it is born.
382
A neglected child brain can be substantially smaller than that of a healthy child.
383
On an average, the number of connections in the brain increases from 50 trillion to 1 quadrillion in a newborn during his first month of life.
384
On an average it takes about 13 days for a grey hair to grow.
385
Healthy human hair emits sound.
386
The human brain stores memories of fear.
387
The nerve cells present in the nose, allows us to smell and regenerates through out ones life.
388
Reading aloud to children helps to stimulate brain development.
389
A hair grows by 0.3 to 0.5 mm per day, 1 to 1.5 cm per month and 12 to 15 cm per year.
390
Children lose an average of 90 hairs per day, which increases to 120 by old age.
391
A childs ability to learn can increase or decrease by 25 % or more depending on whether the child grows up in a stimulating environment.
392
On an average a persons head has 100, 000 to 150, 000 hair.
393
A single hair has the ability to support up to 100 grams of weight and the whole hair has the ability to support up to 12 tones of weight.
394
The pigment of human hair is produced in the shaft of hair beneath the skin.
395
In lifetime, the human heart pumps about 1 million barrels of blood, which is enough to fill more than three tankers.
396
The width of an average human brain is 140 mm.
397
It takes 5- 30 seconds to chew food.
398
Swallowing of the food takes about 10 seconds.
399
The enzyme in the stomach that breaks down alcohol is produced less in men than women.
400
In a year on an average person sleeps for 122 days out of 365 days.
401
There are around 9,000 taste buds present on the tongue.
402
Capillaries are so small that it would take ten of them to equal the thickness of a human hair.
403
It is impossible to tickle our selves.
404
In a human body, the small intestine is 21 feet and the large intestine is 6 feet long.
405
For every 24 hours, in a healthy adult, more than a gallon of water containing over an ounce of salt is absorbed from the intestine.
406
The right side of the human brain is responsible for self-recognition.
407
Men listen with the left side of the brain and women use both sides of the brain.
408
In a lifetime, the human kidneys clean over 1 million gallons of blood.
409
Identical twins have identical DNA but not identical fingerprints.
410
Babies recognize sounds while in mothers womb.
412
Human bone is as strong as steel but 50 times lighter
413
Bones make up only 14% of our weight
414
The brain is faster than a super computer processing billions of signals per second. Vishwanath Ananad the Indian Chess grandmaster has many times beaten the computer at chess.
416
Seven out of ten people cross their left arm over their right
417
Your foot contains 25% of all the bones within your body.
418
Human eye is the only multi-focus lens in the world which can adjust in 2 milliseconds
421
Human brain is the most powerful computer which has the processing speed of 3000+ Ghz
422
The gastric acid in your stomach is so powerful that it is able to eat away an iron table in about 5 minutes.
423
sperm containing the xy chromosomes to become a male can swim faster but not for as long as the female xx chromosomes.
424
The ears never stop growing through lifetime.
425
The heart is accually more in the middle, just off to the left.