Reputation
18,732
Next privilege 20,000 Rep.
Access 'trusted user' tools
Badges
1 30 60
Newest
 Good Answer
Impact
~1.2m people reached

Feb
17
answered Shielding magnetic field without mu-metal
Feb
13
revised Why is the optimum wheel size of a bicycle about the same as that of a car?
added 279 characters in body
Feb
13
answered Why is the optimum wheel size of a bicycle about the same as that of a car?
Feb
12
answered Atmospheric pressure inside a rigid vessel
Feb
12
comment Why does aircraft tail not project down from the fuselage?
Some aircraft eg UAVs do - they are light enough that they can have long thin undercarriages to allow the tail to clear the ground
Feb
11
comment How does holographic radar work?
@velniukas - depending on the range you could either transmit individual 'pings' or a pseudo random continual signal (like GPS) and correlate the phase from that
Feb
10
comment How does holographic radar work?
@dmckee, the term phased array has been used for a few different setups, I didn't want to be too specific of this device. But "Phased Array Radar" would be a good search term
Feb
10
answered How does holographic radar work?
Feb
8
answered Why is it necessary for an object to have a bigger size than the wavelength of light in order for us to see it?
Feb
8
answered Can a photon be emitted with a wavelength > 299,792,458 meters, and would this violate c?
Feb
7
answered Easy to understand equivalents for energy (kilowatt-hour)
Feb
7
answered How much energy was consumed when we turn on/off light?
Feb
7
answered Can x-ray radiation be compared to background radiation?
Feb
6
answered What causes destruction in car crash?
Feb
3
comment Should I heat my room when I'm not here, energy-efficiently speaking?
But there is also a requirement that it is habitable when you are in it. If it takes 6hours to reach 'normal' temperature when you get home in the evening that's not a solution
Feb
3
answered Gauge pressure vs. absolute pressure?
Feb
2
comment Why do we need 12 atoms to store 1 bit of data?
@Lazer they are the AFM 'image' of single atoms spelling out IBM
Feb
1
answered Energy required to reach 1 wavelength
Feb
1
comment Energy required to reach 1 wavelength
" reach 1 wavelength in a given substance" doesn't really mean anything - what are you trying to say?
Feb
1
comment Why do we need 12 atoms to store 1 bit of data?
@Alexander - thanks, typo.