R Askscience - 48 Hours
- Why is it the Doppler shift frequency that counts when calculating the Nyquist limit? - 13 hours
- If two astronauts were suspended in the middle of a room in zero G, would they be able to propel each other in outward directions or would they remain - 13 hours
- What does a global resurfacing event look like? - 13 hours
- How does too much of a vitamin cause toxicity in the body? - 29 hours
- Ask Anything Wednesday - Engineering, Mathematics, Computer Science - 36 hours