Starships propelled by warp drives. Could they really exist? Actually, yes. Yes, perhaps they could.
Where do you look if you want to see the Sun at midnight? You look straight through planet Earth!
What is the Higgs boson?
It’s simultaneously sad and unsurprising how clueless a lot of people are about physics. Surely this stuff should be taught in school science lessons by now. Also, I love the response to the only person who knew what the thing actually is – “She’s a nerd.”
Be proud, fellow nerds!
“Lasers have of course been of economic and technical importance, as well as of scientific interest. I sometimes point out to politicians and other administrative types that if radio astronomy had been sponsored more strongly in the United States we probably would have had masers and lasers sooner.”
Nothing really matters
Is the Sun’s local environment totally devoid of dark matter? What could that mean?
(Image courtesy of fetishfaerie @ deviantART)
The inverse square law — Point source S is radiating light equally in all directions. The amount passing through an area A varies with the distance of the surface from the light.
Doppler effect — soundwaves emitted by a stationary source, a moving source, a source moving at the speed of sound (mach 1), and a supersonic source.
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