Vipul Jain

​​ Why Tennis Balls are fuzzy? Tennis balls are made of bouncy rubber, and the felt covering helps make them softer, slow their speed in the air, and regulate their bounce. As importantly, it gives the tennis ball a lot of surface for spin, which is a key part of the game.

Why does body Temperature rise during Fever? We have three groups of neurons in the hypothalamus, at the base of the brain, that are responsible for regulating body temperature: a hypothalamic thermostat that monitors skin temperature (via incoming signals from nerve fibers) and blood temperature; a heat-promoting center that raises body temperature; and a heat-losing center that lowers body temperature. An infection stimulates the immune system to produce chemicals called endogenous pyrogens. These and prostaglandin E2 raise the set point of the hypothalamic thermostat (like turning up the thermostat in your house). The heat-promoting center constricts blood vessels near the skin surface so more heat is retained in the body, and if that’s not enough, it stimulates shivering to generate more heat, until the body temperature reaches the new set point. The elevated temperature makes it harder for bacteria and viruses to multiply, so the immune system...

​​How Does Blood Clot? Blood clotting is also called  coagulation.  Hemostasis is a word for the process where a blood clot forms. Blood clots form to stop excess blood leaking from your body after you break or cut the surface of your skin. If a blood vessel (a capillary, vein or artery) is damaged (internally or by external injury like a cut) bleeding occurs until a clot forms. Once the site of injury has healed, the blood clot will naturally dissolve. If no blood clot forms it is called a hemorrhage. A hemorrhage is uncontrolled bleeding and can be highly dangerous. Hemophiliacs are people with a blood disorder where there blood does not clot. A small injury can lead to uncontrolled bleeding. In the 1960s, before treatment became available, the life expectancy of someone with hemophilia was just 11 years. Today fortunately, with regular infusions of clotting medications, most can expect to live a relatively normal life expectancy.

MAY 26, 2019 10 harmless mind tricks that make people like you TRAVIS BRADBERRY Give these 10 mind tricks a try and you’re bound to notice a difference in how people respond to you. When you’re working hard and doing all you can to achieve your goals, anything that can give you an edge is powerful and will streamline your path to success. Mind tricks won’t make you a Jedi, but using the brain’s natural quirks to your advantage can have a positive impact on everyone you encounter. 1. When a group of people laughs, each member of the group can’t help but make eye contact with the person they feel closest to. This trick can make you an astute observer of relationships of all types. It can tell you which members of your team are bonding and learning to trust one another, just as easily as it can tell you if you might have a shot at landing a date with a certain someone. Of course, you’ll learn a lot about how you feel about other people just by pay...

​​ What is the Yo-Yo Test in Cricket? It is one of the prime benchmarks used for evaluating the performance patterns of a player. Yo-yo endurance test is a test conducted to compute the endurance and fitness level of a player. It is a strength gauging exercise-based test, which is similar to the Blip test conducted long back during 2001-02. The yo-yo test in cricket, also known as the yo-yo endurance test takes place in a patterned form, following the below-mentioned sets: -Three cones, call it A, B and C are placed ahead of each other. A is placed 5m away from B, while C remains 20m away from B. -The player shuttles between B and C at his highest pace, coming back to B, along with a pre-recorded beep, played in the background. -Reaching to B, he walks to A and returns back to B, within the predetermined time for the next round of the shuttle. -The calculated distance between B and A in comparison to the time taken by the player is calculated as his recovery time, prio...

If you are demotivated because you are not getting good opportunities… then this story will motivate you… It will rain only after 12 years Once, Lord Indra got upset with Farmers, he announced there will be No rain for 12 years & you won’t be able to produce crops Farmers begged for clemency from Lord Indra, who then said, Rain will be possible only if Lord Shiva plays his Damru, but he secretly requested Lord Shiva not to agree to these Farmers & when Farmers reached Lord Shiva he repeated the same thing that he will play Damru after 12 years Disappointed Farmers decided to wait till 12 years but one Farmer regularly was digging treating & putting manure in the soil & sowing the seeds even with no crop emerging Other Farmers were making fun of that Farmer. After 3 years all Farmers asked that Farmer why are you wasting your time n energy when you know that rains will not come before 12 years He replied ” I know that crop won’t come ou...