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Spaced Out: Elite Dangerous - From The Lobster Nebula | MMORPG.com
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Spaced Out: Elite Dangerous - From The Lobster Nebula | MMORPG.com
Mike BC is back with another Spaced Out column, talking about the recent Thargoid events in Elite, as well as his own travels across the Milky Way.
Comments
Warum nennt man "Lichtjahre" wohl "Lichtjahre", auch wenn man schneller als Licht reisen kann?
Antwort:
Weil man in der Physik Konstanten für die Berechnung benötigt.
Beispiele für physikalische Konstanten:
Atomare Masseneinheit?
Boltzmannkonstante?
Elektrische Feldkonstante?
Faraday Konstante?
Gravitationskonstante?
Hubble-Konstante?
Rydberg-Konstante (m → ∞) ?
Und...
Lichtgeschwindigkeit (Vakuum)?
c = 2,99 792 458 · 108 m·s-1?
Und jetzt kann jeder, der die Grundrechenarten kennt, die Entfernung berechnen, die das Licht von einem Punkt zu einem anderen Punkt zurücklegt. Diese wird in Lichtjahren angegeben.
Konstante = Maßeinheit
Ohne Konstanten, keine Mathematik und ohne Mathe wird es eng in der Physik.
Das ist wie Schrödingers Katze...
Gern geschehen
O7
The question to the physicist:
Why do you think "light years" is called "light years" even if you can travel faster than light?
Response:
Because in physics you need constants for calculations.
Examples of physical constants:
Atomic mass unit?
Boltzmann constant?
Electric field constant?
Faraday constant?
Gravitational constant?
Hubble constant?
Rydberg constant (m → ∞) ?
And.
Speed of light (vacuum)?
c = 2,99 792 458 - 108 m-s-1?
And now anyone who knows basic arithmetic can calculate the distance light travels from one point to another. This is given in light years.
Constant = unit of measurement
Without constants, no math, and without math, physics gets tight.
It's like Schrödinger's cat....
You are welcome
O7
Great answer, my question was off key; I was thinking along the lines that we would change to a warp year (even month or days) unit when measuring the distance between stars. But light would still need it's constant and we don't say "Its "travel time" from London to New York" as that can chnage, we talk in terms of miles and kilometers which are "constants" (not by physics, by international agreement).