Red blood cells make approximately 250,000 round trips in the body before returning to the bone marrow, where they were born, to die.
If the end of the exhaust pipe is straight up, when the vehicle is moving, the air above it also moves. If air is moving, the air pressure of that place reduces. This is simply called the Bernoulli’s principle. So,the pressure in the bottom of exhaust pipe is higher than the pressure at the top. This pressure difference helps smoke to rise upwards through the pipe and mix to the air. Removing smoke constantly helps engine to work efficiently.
Most vehicles have their exhaust pipe facing backwards.However speed the smoke is removed affects the fuel efficiency of a vehicle. Pickup truck with its exhaust pipe vertically up is considered as the best way that removes smoke.What is the scientific reason behind this?
If Jupiter suddenly replaced our moon, the new moon will appear 1600 times bigger.
And if we calculate further the Earth will crash into Jupiter in less than 1 day due to the gravity of Jupiter.
Human brain can remember up to 2000 faces.
It is observed that if rats are exposed to an unfamiliar environment, they run once or twice in the shape of an “8”.Do you know why?
Scientists have discovered that when Rats run in the shape of 8, they can have a good map of the surrounding. After picking up the safer direction, it will escape from the track.
If you attempted to count the stars in our galaxy at a rate of one every second, it would take about 3,000 years to complete the task.
Lightning strikes about 6,000 times per minute on our planet.
Human body contains enough fat to produce seven pieces of soap.
The time that Moon takes to rotate around its own axis, is equal to the time Moon takes to rotate around Earth. Due to this, the Moon doesn’t seem to be rotating around its own axis for us on Earth.
Why do we (on Earth) always see the same side of the moon every day?
US energy production from solar energy has increased by a massive percentage of 227% in the first quarter of 2013.
Chewing gum was invented by a dentist, named William Semple – as a way to exercise your jaws.
If all of the blood cells in the human body were stacked on top of each other,it would create a tower 49,980 kilometers high.
The eyebrows prevent sweat produced on forehead from pouring down to eyes. It is important as the salt in sweat irritates the eyes if it enters.In addition they are useful in non-verbal expressions. A simple movement of the eyebrows can sometimes express what is meant by so many words.
What is the use of having eyebrows to humans?
An adult person makes approximately 23,000 breaths a day.
The volume of a barrel of crude oil is approximately 160 liters.
Human brain generates more electric impulses in a day than all telephones of the world combined.
The high frequency noise of mosquitoes is capable of making us angry. When we get angry,our Sympathetic nervous system stimulates and as a result, the blood capillaries closer to the skin gets dilated. (expands cross sectional area) .This reduces the strength of capillary walls that help mosquitoes to pierce and suck blood out easily. But remember it is not compulsory that mosquitoes can only pierce our skin when we are angry.