It is called porra calibration!

Take a fucking chappie pa'!!!!

Will give the answers tonight - if there's anyone interested that is?

Too quiet here means no curiosity, won't post a new one.
A1: the top of a wheel moving with speed V moves with a speed just over 2V because of wheel-deformation at the bottom
A2: 0.1 Kg for the lead weight and 'just over 0.1' Kg for the polystyrene ball which has air enclosed, the weight of it offset by buoyancy in air on earth

thanks bud! I logged in just to view this answer

Maybe 1 more then.
There's a lighthouse with a powerful laser on a planet casting it's beam into space, it's rotational frequency 1 per second.
A lightyear away an astronaut sees this beam going past the window of his spaceship in which he is - which means the beam rushes past him with a speed of 6.28 lightyears per second which is magnitudes bigger than the speed of light!
Is this scenario possible?

FFS Chmoks that sounds like a riddle for Sheldon from big bang theory!

On 2016-03-03 09:13:02 daporra said:
FFS Chmoks that sounds like a riddle for Sheldon from big bang theory!

LMFAO.... dats true tho

Wish Penny was a WG

On 2016-03-02 23:06:14 Chmoks said:
Maybe 1 more then.
There's a lighthouse with a powerful laser on a planet casting it's beam into space, it's rotational frequency 1 per second.
A lightyear away an astronaut sees this beam going past the window of his spaceship in which he is - which means the beam rushes past him with a speed of 6.28 lightyears per second which is magnitudes bigger than the speed of light!
Is this scenario possible?

I remember watching a YouTube video (either minute physics or vsauce) about this. I Think the astronaut wouldn't see the light moving, only a single flash of light once a year. (Or once a second). I'm not a physist and this is my best guess

"physist" .... clearly not

#justjokes

ACHTUNG ACHTUNG!! ZER SPELLING NAZI IS ON PATROL.
#justjokes