Do You Know
Questions & Answers on General Knowledge.
Why do some people throw up when they eat spicy food?
Throw up, also called vomit, puke, and upchuck, is half-digested food and liquid that gets mixed up with your stomach juices and comes out of your mouth. Vomit happens when your stomach starts to feel queasy (or nauseated), sometimes after you exercise or run around too much after eating, eat too much food, or eat food that is spicy and therefore irritating to your stomach. Normally, your stomach processes your food well through the digestive system, but if you eat food with lots of bacteria or if you have a virus in your stomach, the quickest way for your body to get rid of the irritants is to vomit them out. Your brain tells the muscles in your stomach walls to spasm (contract abnormally); it also tells your diaphragm—the large sheet of muscles that separates your chest from your abdomen and is most responsible for your breathing—to press downward on your stomach. These activities combine to force the contents of your stomach up and out.
How does laser surgery work?
In modern car alarm systems, people can start the engine with a push of a button from a remote. How is this done?
What function does the Degauss button actually perform on computer monitors and why is it not available for televisions?
How does the coil in a microphone turn sound into electric current?
Why do plants grow flowers and fruit?
How important was the Scientific Revolution?
What type of people help make a community operate well?
Would ice in the freezer absorb the smell in the freezer?
What is an insect?
Are shooting stars really stars?
How do the different jet engines work on aircraft the turbojet, the turbofan, and the turboprop?
Can a host be harmed?
Is it true that a shark can smell a drop of blood from a mile away?
How does a laser diode work?
Where did the phrase spin doctor come from?
Which is the oldest religion in the world still practiced?
What are muscles made of?
Which states are the biggest farm states?
What are waterfalls?
What causes undertows?
Did King Arthur exist?
What were medieval buildings like?
Do howler monkeys howl?
Is second-hand smoke bad?
How does a gravity powered water pump work?
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