Sooooo, wavelengths (λ) become longer when something moves away (redshift) and become shorter when something moves towards you (blueshift).
For a red flag (λ0=610nm) to become a green flag (λ1=549nm), it has to move towards you quite fast. But how fast is 'quite fast'?
Using the formula
flag_velocity / speed of light (c) = difference in wavelengths / starting wavelength
we get
flag_velocity = (610-549) / 610 * c = 61 / 610 * c = 1/10 * c
This means: the flag has to move with about c/10 = 30 000 000 m/s = 108 000 000 km/h = 67 108 100 mph. Yeah, that's quite fast.
(Disclaimer:
use info on own risk
values for λ were chosen in a way to make calculations easy. There is no info on what shade of red or green the flag is. The final result will be about the same.
With speeds at around 10% of c, I should use the formula considering the relativistic doppler effect... However, i wont. Thanks.)
Sooooo, wavelengths (λ) become longer when something moves away (redshift) and become shorter when something moves towards you (blueshift).
For a red flag (λ0=610nm) to become a green flag (λ1=549nm), it has to move towards you quite fast. But how fast is 'quite fast'?
Using the formula
flag_velocity / speed of light (c) = difference in wavelengths / starting wavelength
we get
flag_velocity = (610-549) / 610 * c = 61 / 610 * c = 1/10 * c
This means: the flag has to move with about c/10 = 30 000 000 m/s = 108 000 000 km/h = 67 108 100 mph. Yeah, that's quite fast.
(Disclaimer:
use info on own risk
values for λ were chosen in a way to make calculations easy. There is no info on what shade of red or green the flag is. The final result will be about the same.
With speeds at around 10% of c, I should use the formula considering the relativistic doppler effect... However, i wont. Thanks.)
Unfortunately your explanation is wrong: the reason why satellites in low earth orbit fall back to earth is, that in those heights (about 500km above earths surface) the thin remaining atmosphere creates drag and slow the satellites down.
About gravity: gravity is the reason, why satellites even stay in orbit and keep circling the earth. Without gravity, all the satellites would just fly away.
The actual unit is lower case, the multiplier is uppercase.
Wouldn't agree with that... There are many different units and multipliers. the letter being uppercase or lowercase has nothing to do with it.
Examples:
letters for prefixes/multipliers being uppercase and lowercase: P, T, G, M, k, h, da, d, c, m, u, n (trillion, billion, million, thousand, hundred, ten, one tenth, one hundredth, one thousandth, one millionth, one billionth)
Letters for units being uppercase and lowercase: s, m, g, N, W, J, A, K, V, h, Hz (seconds, meter, gram, Newton, Watt, Joule, Ampere, Kelvin, Volt, hour, Hertz) (just recognised, that most units, which are named after scientists, are written with capital letters...)
km = thousand meters/kilometer
K = Kelvin (unit for temperature)
M = Mega (prefix for one million)
kJ = thousand joules
s = second
ms = millisecond (one thousandth)
S = siemens (electrical conductivity)
mS = milli siemens
mm = millimeter (one thousandth of a meter)
Mm = megameter (one million meters or thousand kilometers)
I didn't crunch the numbers, but as far as I see, most of the linux growth comes from the Steam deck, which runs a Linux OS.
This could also be the reason for the decrease of OSX, because more other, non classical computer, devices are included, which automatically reduces the share of Laptop and PC devices.
Teh bset tinhg aubot it is, taht it aslo wroks in ohetr lngauages lkie greman, epxet wehn its a cmopudon nuon lkie Aepirtsvksrtyzkdfttenmköaititsueiaiämfruehsg.
Although it is more and more probable with each race, and max and RB are totally capable of achieving the perfect season, it only takes one unfortunate turn of events to end this streak.
Hope to get a proper broadcast next year! 😉 At least let them be part of the F1TV subscription!