The Brief: AskScience is a subreddit for asking and answering science-related questions. 

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DEEP DIVE

Ever wondered what is under the desert sands or if deep-sea creatures have a sleep schedule? Then this is the subreddit for you. Packed with a wealth of scientific knowledge curated by a hand-selected Panel of Experts, r/AskScience is the ideal place to let your inquisitiveness run wild. 

Do giraffes get struck by lightning more often than other animals?
by inaskscience

If hand sanitizer kills 99.99% of germs, then won’t the surviving 0.01% make hand sanitizer resistant strains?
byu/ClF3FTW inaskscience

Why are Primates incapable of Human speech, while lesser animals such as Parrots can emulate Human speech?
byu/HBOTB2 inaskscience

If climate change is a serious threat and sea levels are going to rise or are rising, why don’t we see real-estate prices drastically decreasing around coastal areas?
byu/redditUserError404 inaskscience

The recent fire in London was traced to an electrical fault in a fridge freezer. How can you trace with such accuracy what was the single appliance that caused it?
byu/Teacob inaskscience

Why do computers and game consoles need to restart in order to install software updates?
byu/DerangedDog1 inaskscience

Why do airplanes need to fly so high?
byu/peterthefatman inaskscience

What affect does the quantity of injuries have on healing time? For example, would a paper cut take longer to heal if I had a broken Jaw at the same time?
byu/Atari1729 inaskscience

Why do nearsighted people need a prescription and a $300 pair of glasses, while farsighted people can buy their glasses at the dollar store?
byu/simrc86 inaskscience

Why do we have to “fall” asleep? Why can’t we just decide to be asleep?
byu/SixthGrader inaskscience

If we return to the moon, is there a telescope on earth today strong enough to watch astronauts walking around on the surface?
byu/parquet7 inaskscience

Do heavily forested regions of the world like the eastern United States experience a noticeable difference in oxygen levels/air quality during the winter months when the trees lose all of their leaves?
byu/goodyboomboom inaskscience

For humans, sea water is not drinkable due to its high salt content. How do whales, manatees, seals, and other sea faring mammals stay hydrated?
byu/StarlordDrT inaskscience

Does the size of a creature, or the size of its eye, affect what can be seen by the “naked eye”? for example, can ants see things we consider microscopic? are ants microscopic to elephants?
byu/Lusiggy inaskscience

What % of my weight am I actually lifting when doing a push-up?
byu/Standby4Rant inaskscience

Why is it that during winter it’s not uncommon to have days with abnormally high temperature and summer-like weather, but in the summer it never drops to winter-like weather for a day?
byu/This31415926535 inaskscience

If we could travel at 99.9% the speed of light, it would take 4 years to get to Alpha Centauri. Would the people on the spaceship feel like they were stuck on board for 4 years or would it feel shorter for them?
byu/GPL89 inaskscience

What is the point of using screws with a Phillips head, flathead, allen, hex, etc. instead of just having one universal screw type?
byu/EthanNewb inaskscience

If light can travel freely through space, why isn’t the Earth perfectly lit all the time? Where does all the light from all the stars get lost?
byu/monorailmx inaskscience