Science
Exploring "Why" questions about Science
484 articles
Why do bubbles appear at the heated area of a boiling kettle?
All matter can have three states: solid, liquid, and gas. Normally we see water as a liquid. When water is heated above 100 degrees C (at sea level), it becomes a gas.
Why is it that when you turn on a heater and suck in the air coming out of it, it feels dry?
Hot air has a higher capacity for water. So if you heat up a volume of air the *relative* humidity goes down even though the absolute amount of water stays the same. Therefore the warm air can take up
Why does it take 3, 5, 10+yrs for some games to come out, such as Fallout New Vegas to Fallout 4 when the games become profitable on mere preorders alone? Halflife 3 would generate billions, yet it…
Games like Fallout or Halflife are niche genres without much widespread interest, so any additions to the series have to be carefully created and marketed in order to preserve their following while at
Why don’t we cook things at higher temperatures for less amount of time?
I'm going to assume you mean in an oven and not a microwave. Think of it this way - when you lay out on the sun what warms first? Your skin.
Why aren’t there any normal 5.5% alc./vol beers that are also light in calories?
There is a direct correlation between alcohol content and calories. Calories are units of heat. Alcohol is literally flammable.
why is turning your assets into cash called “liquidating”?
This is known as a "metaphor". Money isn't literally liquid, but we *do* refer to it as "cash flow". Basically, having your assets liquid means you can easily move them from place to place.
Why do some biscuits take longer to completely soak if completely covered by liquids instead of slowly dunked?
When you dunk the biscuit, the tea replaces the air inside the biscuit. The air has to be able to escape the biscuit for this to happen. This is easy if part of the biscuit is still dry, because the s
Why does my vision become slightly blurred after laying on my back while viewing a computer placed on my stomach?
I'm no expert on this but having to, what I'm assuming you're doing, tilt your head on an angle to see the screen, means the blood isnt properly circulating to your head
Why does scratching an itch feel so good, but the same pressure/force on a non-itch site feel painful?
Scratching an itch makes it feel better because the scratches send more signals to the brain than the itch in that particular spot, and the feeling of the scratches distracts your brain from the itch.
Why are my hands cold so frequently, and how can I help prevent this?
You might want to provide a little more information otherwise the best anyone can do is take a wild guess. My wild guess is that it is because it is cold outside, wear gloves to prevent it.