172 reputation
29
bio website
location Utrecht, Netherlands
age 39
visits member for 4 years, 3 months
seen Jun 22 at 14:23

Mar
9
comment Is there an infinite amount of wavelengths of light? Is the EM spectrum continuous?
The 'allowed' wavelengths could be rational multiples of some fundamental wavelength with no-one being any the wiser... Food for thought: is there an experiment that can be performed in a finite time to distinguish between there being a countably or an uncountably infinite number of wavelengths?
Mar
23
awarded  Notable Question
Mar
4
comment Photoelectric effect with protons
The nuclear binding energy per nucleon is on the order of a couple of MeVs, while the electron binding energy for the outermost electron is in the tens of eVs. I don't know why you're mentioning the inverse of the fine structure constant here!
Jun
7
awarded  Enthusiast
Dec
6
awarded  Caucus
Sep
24
awarded  Popular Question
Mar
8
awarded  Critic
Sep
8
comment How do we know that C14 decay is exponential and not linear?
Galileo would be proud! @Ruud: So 2 separate boxes with 500M atoms would decay entirely in 5700y, but if you put them together half would remain. That seems a bit strange, to say the least...
Aug
1
comment The philosophy behind the mathematics of quantum mechanics
@recipriversexclusion: I have a CS background, and those lectures really made it click what quantum computing was about, in terms of computation (as opposed to the physics aspect). I hope it's the same for people coming from physics. Glad you liked them, in any case!
Aug
1
answered The philosophy behind the mathematics of quantum mechanics
Jul
18
comment Addition of different physical quantities
@Saeed, if you do that, then presumably also 4 oranges + 3 apples = 7 fruits, from which you can derive 1 orange = 1 apple. You might as well call them fruits straight away!
Jul
2
awarded  Teacher
Jun
29
revised Outcomes of earth slowing down spinning on its own axis
Misinterpreted the difference between mean solar day and 86400 s as being due to tidal braking.
Jun
29
awarded  Commentator
Jun
29
comment Outcomes of earth slowing down spinning on its own axis
Whoops, should have read a bit more. Thank you for the correction, I'll edit it in.
Jun
28
revised Newton's cradle
Fixed spelling (verticle!) and punctuation. Currrently proofreading a PhD thesis so I'm hypersensitive :)
Jun
28
suggested approved edit on Newton's cradle
Jun
28
answered Outcomes of earth slowing down spinning on its own axis
May
25
comment Light travels a straight line write down the principle in which this is manitested
It's also nice to show what you've tried, what did or didn't work with your approach, and a 'please' at the end also help in posing a question.
May
24
comment How fast do I need to go in order to avoid being seen by the Police?
How will you know the cop's there in the first place?