All of us have heard about Rudolph the red-nosed reindeer, santa’s most famous reindeer. Rudolph’s shiny red nose isn’t a made up story. Some reindeer do have a red nose thanks to a densely packed network of blood vessels near its nose. The more blood in the vessels the more it is visible. Although it doesn’t illuminate the way for reindeer as they say in the story, it has been found that this plays a major role in regulating the body temperature of the reindeer living in the arctic region,by controlling the exchange of heat from the body.
Have ever you seen circular ring patterns on the trunk of a tree when it is cut down? If you observe closely you can even see them on some wooden furniture. Known as growth rings, they add beauty to a piece of furniture and also tell the story of the tree it was taken from. Using these rings, scientists can determine the age of a tree and can even find the time periods in which that tree went through hard times such as droughts. Aren’t these rings just like the diary of a tree?
Just think how depressed we would be if we lose an arm or leg in an accident. But this might not be a huge deal in future because 3D printed organs are already on their way! Scientists have already 3D printed an ear made of real living cells. When it was implanted, internal features such as blood vessels developed, which makes this ear almost identical to a real one. Who knows, there might be a day where we could print ourselves much complex organs such as hearts and brains.
Hydrogen, one of the world’s cleanest sources of energy can be found everywhere, but is found as a part of the water molecule. Scientists are researching on a special type of paint that absorbs moisture from the air and separates the hydrogen from water using sunlight. If they find a way to keep the hydrogen intact (without reacting) until further use, it won’t be long before we could convert our houses, fences and cars into our own power plants.
Infrared rays causes the blood vessels to dilate, increasing the blood flowing into the damaged area. This brings in more oxygen and nutrients to help accelerate the healing process. Infrared rays also increase the energy production within the cell, to help the organ heal itself resulting in the reduction of pain. Improved blood flow also removes any harmful substances from the damaged areas.
Muscle pains can be really painful and frustrating and can stand in the way of your daily activities. You may have heard that infrared rays are used to treat muscle pain. (heat therapy/red light treatment). Explain how this practice relieves muscle pain?
Can you remember how smog affected play in the test match Srilanka played in Delhi?If you thought this was the natural fog seen in the morning you would be wrong.Known as photochemical smog, this is a deadly mixture of toxic gases. Can you believe that the gases we emit can cause something this deadly. These gases cause shortness of breath, asthma and long-time exposure can lead to births with defects. If we don’t take action now it won’t be long before a match is stopped due to poor air quality.
Have you ever wondered why our veins appear in a shade of greenish blue? Neither blood nor the blood vessels are blue in colour. The reason behind this is that blue light can penetrate the skin and reflect off the blood vessels. But red light gets absorbed by the skin in the process. More blue light reaches our eyes tricking us into believing that blood vessels are blue.
Cancer is a deadly disease that takes thousands of lives every year. Chemotherapy is used to treat cancer but it comes with a price, causing the patient pain, discomfort and hair loss. The chemicals used, attack cells that divide and produce new cells rapidly. Unfortunately, the cells that grow hair also produce new cells faster, putting them in line of the chemicals’ attack. This prevents hair from growing resulting in the loss of hair.
The glacier has a huge mass. So the force exerted on the bottom layers of the glacier is high. This increases the pressure on the bottom layer of ice. As the pressure increases, the melting point of ice goes down. When it goes below the temperature of the ice, the bottom layer of ice converts into water. Water remains as a liquid because the ice on top acts as an insulator.
Glaciers are huge masses of ice found on top of mountains or the poles of the earth. But you would find liquid water beneath the glacier which has roughly the same temperature as ice.Explain how this happens.
Would you believe that a car made of metal is a safe place to be during lightning?But it is not the rubber tires that does the trick it is actually the metal itself that saves you!
The electricity from lightning would flow through the conductive metal frame passing onto the ground without harming the passengers.
Have you ever wondered why we have lines on our palms? If not for these lines the skin on our hands would bulge out when we fold our fingers and palm, reducing the gripping ability of our hands.The lines make it easier for the skin to fold along those lines.Some might say these lines show your future but these lines are certainly used to diagnose some medical conditions.
You must have ironed your clothes in the morning but have you ever wondered how the iron does its magic? Ironing heats the molecules of the cloth which loosens up the bonds between fibres. Since the fibres are now able to move, the weight of the iron aligns them back in place. As the cloth cools down, the fibres hold their new position giving the cloth that perfect wrinkle-free look you wanted.
Nature has yet again provided us with inspiration for enhancing the performance of robots. An animal named galago/bush baby has the ability to jump high and far on consecutive jumps without even stopping for a rest. Researchers have infused the mechanism it uses into a robot, enabling the robot to start its next jump as soon as it lands. Amazingly, it can even jump on to a wall and bounce off it in another direction making it one of the most agile robots out there!