Close your eyes for a moment and try to stand with one foot. You sure cannot remain in that posture for that long. can you?
Do you know the reason for this?
The burning sensation we get from chilli peppers is because of a chemical called Capsaicin. This chemical stimulates areas of the skin and tongue that normally sense heat and pain,making your brain think that they are burning.
The only part of the body that has no blood supply is the cornea in the eye. It takes in oxygen directly from the air.
Do you know what the world’s densest wood is? It is the Black Ironwood, It does not float on water like other wood and therefore sinks.
The bench top is flat, when you sit on it, you press your entire weight on a small area.Chairs usually have a concave seat, in this case you press down on a much greater area over which your weight is distributed on every unit of surface, a comparatively smaller weight is applied,making you feel less uncomfortable
Why do you feel more comfortable when you’re seated in a wooden chair than when you’re seated in a flat topped wooden bench?
Do you know what medicinal capsules are made of? They are made of Gelatin; extracted from animal skin and bones. It dissolves safely in the stomach, releasing its contents within minutes.
Hedgehogs are born with a membrane covering their quills to protect its mother. The membrane dries and falls off, a few hours after its birth. Isn’t it amazing how nature has a solution to all of its problems?
Would you like to know how a ball point pen works? The metal ball at the point of a pen acts as a buffer between the paper that you’re writing on and the quick-drying ink inside the pen. The ball rotates freely and rolls out the ink as it is continuously fed from the ink inside the tube
Food is spoiled due to the growth of microbes in it.The salt you add to preserve the food draws water out of food through osmosis and dehydrates it. In such an environment , the microbes will become dehydrated and die or become temporarily inactivated.So the food remains unspoiled for quite a long time.
From the Ancient days Man has used many methods to preserve food. Salting is one such method. Do you know how salt preserves food?
One of the most fascinating things about soap bubbles is their beautiful colours. Do you know what makes them so colourful ?
A soap bubble is made up of an inner and outer layer of soap. When white light passes through the top layer of the bubble some of it is reflected while some light continues through to the inner layer, where again some of it is reflected. This refraction and reflection of light makes the bubble appear in different colours.
Your brain estimates your location by a combination of information gained from a variety of sources, including sight, touch and senses from the inner ear .When you are reading in the back seat of a car. Your eyes, fixed on the book with the peripheral vision seeing the interior of the car, say that you are still. But as the car goes over bumps, turns, or changes its velocity, your inner ears sense movement. This causes a confusion in your brain which makes you feel sick.
Do you remember the last time you were travelling on the backseat of a vehicle, you got bored and started reading a book.?You could not continue reading because after a while you felt nauseous and sick. Do you know the reason for this?
Since you now know how a pencil does its job, you might also want to know how an eraser works. The particles in the polymer that make up an eraser are stickier than paper. So the graphite particles of the pencil marks leave the paper & get stuck to the eraser.
The pencil must have been your best buddy ever since you were a kid. But do you know how it works? As you write, particles of graphite from your pencil, mingle with and cling to particles in the fiber of the paper helping you turn your thoughts into words.
The green light emitted by the firefly is produced in cells containing a chemical that reacts with oxygen and an enzyme. The beetle can turn the light on and off by controlling the amount of air that enters the cells. The most amazing thing is that it is reported that these beetles have a productivity level of nearly 100% where as a normal household bulb only has a productivity level of 10%.
Since humans are warm blooded animals,your body would not allow its temperature to drop with the cold weather.Instead it would naturally increase the production of heat by increasing its metabolism.So the energy usage of your body is comparatively higher on cold days making you hungry more often than on other days.
Imagine a cold rainy day. Have you ever noticed that you feel hungrier on these days? What do you think is the reason for this?