Nature
Exploring "Why" questions about Nature
487 articles
Why does a 1280×720 photo look fine on a 17 inch monitor but grainy on a 4×6″ print?
Monitors usually have a resolution of about 96 ppi; they have about 96 pixels per inch, although this can vary. Mobile devices typically have much higher ppi as they are viewed at much closer range. P
why is it in northern states (US) it can snow several feet and daily life doesn’t change, but in southern states ~1 inch of snow can shut everything down?
Infrastructure in place to deal with it, both people's stuff and city wide. If you live in an area that regularly gets snow, you have snowblowers. You have shovels.
Why don’t we put “windmills” under water to use the endless currents of the ocean to generate power
They do. Its called Hydroelectric. We mostly use dams for it.
Why do firefighters “make it rain” on a fire instead of pointing the hose at the ground or directly into the fire?
What they are trying to do is prevent the area immediately next to where the fire is from catching fire. By doing this (in theory) the fire will have nowhere to go and eventually use up the fuel that
Why haven’t they created another concorde like plane to traverse the oceans.
Cost and noise are the biggest factors. The Concorde was generally operated at loss to the companies that operated them, they only continued to operate them as a matter of pride (since they are the na
Why do some people put their windshield wipers “up” when it is going to snow/ice?
Both. The snow and ice can be hard to get out of the space between the wiper and your hood, and when you're scraping it out you can easily tear the rubber off the blade if it's glued to the windshield
Why is it colder in the mountains than at ocean level?
The Earth is covered in a blanket of gasses called the atmosphere. The atmosphere helps keep the Earth warm by hugging the Earth as best it can. However, the farther away from the Earth you get (when
Why do I get more sick in the winter vs the summer?
Because during the wintertime, you tend to stay indoors more, and come into contact with people up close rather than outside, when it's summertime. The increased opportunity/frequency for contact give
Why Edward Snowden is hated by pretty much all Americans?
He's not. Hell most people probably think he did the right thing. Nobody is calling for his head in the US, or at least not many are.
Why do hurricanes never hit South America?
_URL_0_ It is more than 2-3. But it is somewhat protected due to the structure of the various major wind streams and ocean currents which will drive storms north most of the time. This protection mean