‘Cosmonautics Day’ is almost on our doorsteps. 55 years have passed since the first manned flight into space! Today we offer you to test your knowledge of the history of space.
Take the quiz Here!
Why do we have to tick the speed of light in damn km/h, no one uses that unit for anything.
15 minutes ago, John161 said:
Why do we have to tick the speed of light in damn km/h, no one uses that unit for anything.
Because it would be pointless to say “Speed of light = 1c”
35 minutes ago, Swifter43021 said:
Because it would be pointless to say “Speed of light = 1c”
I think he meant that it should be in km/s rather than km/h.
5 hours ago, John161 said:
Why do we have to tick the speed of light in damn km/h, no one uses that unit for anything.
I do ”) my country uses that measure for everything regarding speed. My mind works with kilometers per hour, not per sec or miles.
4 hours ago, QACinnamonTroll said:
I think he meant that it should be in km/s rather than km/h.
m/s and not km/s but yeah
27 minutes ago, Papitas said:
I do ”) my country uses that measure for everything regarding speed. My mind works with kilometers per hour, not per sec or miles.
You may use it for daily stuff but not for any damn kind of physical calculations (and I’m preparing atm for my final exams so yeah…)
1 hour ago, John161 said:
You may use it for daily stuff but not for any damn kind of physical calculations (and I’m preparing atm for my final exams so yeah…)
I do, we have the same measure sistem for everything, thats how things work in Chile, clearly not in your country. It would be totally nonsense to use 2 different measure sistems, totally unpractical (as deadpool would say). Btw, what makes you think i use it for daily stuff but not for physical calculations?
20 minutes ago, Papitas said:
I do, we have the same measure sistem for everything, thats how things work in Chile, clearly not in your country. It would be totally nonsense to use 2 different measure sistems, totally unpractical (as deadpool would say). Btw, what makes you think i use it for daily stuff but not for physical calculations?
you have to convert it at a certain point the h into s so you don’t have completely crappy units in the end.
In Germany you use km/h for everything in you daily life, but no in any calculation where you benefit from using the SI units.
1 hour ago, John161 said:
you have to convert it at a certain point the h into s so you don’t have completely crappy units in the end.
In Germany you use km/h for everything in you daily life, but no in any calculation where you benefit from using the SI units.
well…i only made physics calculations at school, so im not an expert and i dont really care xD
11 minutes ago, Papitas said:
well…i only made physics calculations at school, so im not an expert and i dont really care xD
That can be true and I’m still going to school (3 more days some lessons and then some final exams to be finally free)
10 hours ago, John161 said:
m/s and not km/s but yeah
weird, we use m/s in calculations, km/h regarding speed and ordinary life and km/s regarding the speed of light only.
2 hours ago, QACinnamonTroll said:
weird, we use m/s in calculations, km/h regarding speed and ordinary life and km/s regarding the speed of light only.
IMO it is easier to reneged 299792458m/s then 299792.485 km/s and on meter is defined after the speed of light and not a kilometer, but yeah…
5 hours ago, MightyHoot said:
also it doesn’t matter what units you use as long as you stick to them throughout calc 
Yeah but at one point you often have to convert them so you don’t end up with e.g. m/s*h
My answers to the test were over the limit and got deleted.
I tried to convert the speed of light into km/s but it’s above 200. So I can’t and I’m stuck now.
15 hours ago, Swifter43021 said:
I tried to convert the speed of light into km/s but it’s above 200. So I can’t and I’m stuck now.
round to 300?