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seen Dec 1 at 2:46

Dec
1
awarded  Yearling
Nov
30
comment What are ADU (analog-to-digital units)?
The 4096 states are encoded uniquely on the 12 bits. So with "series of bits" I was being wordy.
Nov
30
comment What are ADU (analog-to-digital units)?
@Guest the change from one DN (digital number) to the adjacent one is a ADU i.e. the step size. It is Binary coded so the series of bits represent an integer value over the span (in a 12 bit convertor) of 4096 states. This is one encoding, of course there are others. DN and ADU are interchangeable because it is integer arithmetic.
Nov
29
answered What are ADU (analog-to-digital units)?
Oct
26
comment Is there a limit to the frame rate achievable with a high-speed camera?
That link to the "recordings at a thousand times ..." is to work that is done with multiple exposures with slightly varying shutter offset on each subsequent exposure and NOT actually being run at that frame rate. Much like Doc Edgerton and his fast strobe movies.
Sep
4
awarded  Revival
Jul
27
comment Is this air cooling idea feasible?
the colloquial term is "swamp cooler" !
Jul
21
comment Practical (maybe naive) question on boiling water
@Val you clearly haven't thought about this. Boiling is the majority of energy transport which is convection. There will be a slight temperature gradient with the bottom being slightly higher due to the marginally higher pressure. Put those two together and there is a greater chance that the water in the bottle will boil. The walls of the bottle shut down teh convective processes for inside the bottle.
Jul
21
comment How would an X-ray scanner identify a mirror?
Unless of course they are back-scatter X-Ray machines.
Jul
21
answered Mass of air inside air balloon
Jul
21
comment Practical (maybe naive) question on boiling water
+1 Also the bottle shuts down the convection currents that also transport energy.
Jul
18
answered How does electrostatic force affect electronic devices?
Jul
18
awarded  Commentator
Jul
18
comment Why do we test electric fields with positive charges and not negative ones?
opposite and parallel is not the best pairing of words, perhaps opposite and towards or away from and towards ?
Jul
16
answered photo electric effect question
Jul
12
answered Why does a short circuit generate fire?
Jul
11
comment Flying eggshells
@AnotherUser Nope, there is at least 2 orders of magnitude separating the buoyancy force vs the shell weight.
Jul
10
awarded  Critic
Jul
8
answered Layer thickness measurement
Jul
7
answered Flying eggshells