Science
Exploring "Why" questions about Science
484 articles
Why does color affect heat absorption?
It's not color that affect heat absorption. It's the physical propriety of material that absorb different wavelenght of light. So if a material absord all visible wavelength of light it will appear bl
Why can’t you use electronic devices on planes right after takeoff?
The FAA banned electronic devices (cell phones, etc.) on planes because there _might_ be interference with avionics. The FCC banned electronic devices on planes because of _possible_ interference with
Why do you feel cold and nauseous after breaking a bone?
Shock. You both is redirecting your blood to your vital organs, which drops your blood pressure. Shutting down your digestive system and flooding your body with hormones such as adrenaline enables it
Why you need to put cold water/anything cold on a burn.
Your body is a piece of meat that is being cooked and you need to stop it from cooking.
why don’t tank guns use gas blowback systems like assault rifles?
From: _URL_0_ Autoloaders represent tradeoffs. I do think it is possible to design a compartmentalized autoloader that might be able to be as fast as a human and perhaps ammo change-out of ammo as nee
Why we still label circuits based upon “conventional” current when we know that current actually flows in the opposite direction?
Pretty much, everything was defined before the discovery of, say the electron. Scientists, being positively minded and optimistic, decided it would probably be the positive charge moving around. Note
Why don’t gas pumps take cash?
I've seen a few gas stations that do have a cash-accepting machine. It's for models where the individual pumps don't accept money, you have to go to a central automated kiosk to pay. That being said,
Why do we make solid and liquid waste? How does our body know which to make of what?
The solid waste is what didn't get absorbed in your intestines. The "liquid" waste is all the stuff that was absorbed and needs to be flushed out again or the waste products of using the absorbed stuf
Why can’t current be defined as co-directional with the flow of electrons?
Because current is the flow of charge, not electrons. The particles that allow for the flow of charge are called "charge carriers" and electrons happen to have a negative charge, so current flows in t
Why are some medications race-based?
There's sufficient genetic difference between various human races to create different reactions to certain drugs, or increase the possibility of certain reactions in certain races. An example of one s