You’re assuming there’s no alternative means of defining the formula, such as a contraction of length of the distance to the destination to zero which puts the experienced travel time at zero, which does not require you to divide by zero
Natanael
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For somebody who claims to be acutely aware, you really seem to have no idea what goes into calibrating measurement devices to be able to measure physical constants. In particular you have no idea how many other units go into calibrating them, and how you fundamentally can not get an accurate reading of a physical constant without that calibration. And for somebody claiming I’m the condescending one, you’re awfully rude yourself
Just see the definition of the kilogram, and how it’s now defined in relation to time, c, and the planck constant.
While the second is the only base unit to be explicitly defined in terms of the caesium standard, the majority of SI units have definitions that mention either the second, or other units defined using the second. Consequently, every base unit except the mole and every named derived unit except the coulomb, gray, sievert, radian, and steradian have values that are implicitly at least partially defined by the properties of the caesium-133 hyperfine transition radiation. And of these, all but the mole, the coulomb, and the dimensionless radian and steradian are implicitly defined by the general properties of electromagnetic radiation.
https://en.wikipedia.org/wiki/Caesium_standard
When the atom is irradiated with electromagnetic radiation having an energy corresponding to the energetic difference between the two sub-levels the radiation is absorbed and the atom is excited, going from the F = 3 sub-level to the F = 4 one. After some time the atom will re-emit the radiation and return to its F = 3 ground state. From the definition of the second it follows that the radiation in question has a frequency of exactly 9.19263177 GHz, corresponding to a wavelength of about 3.26 cm and therefore belonging to the microwave range.
Oh so now we need to measure electromagnetic fields and charge to be able to hit the atom with light of the right energy to be able to measure time? And to verify the emitted frequency (both in and out) is right we need to define either energy (Joule, circular via either kilogram or Volt) or wavelength (directly circular)? Huh…
Everything meaningful is defined as relative properties, as ratios to other forces and properties of nature.
Natanael@slrpnk.netto
Green Energy@slrpnk.net•Solar alone is now competitive with fossil power on a pure capital expenditure (capex) basis, and solar-plus-storage is expected to follow by around 2030
0·2 days agoSo that’s just infrastructure and install cost. That means even the dumbest bean counters out there can’t call solar a bad investment, not even the shortest term thinking quarterly reports obsessed morons.
Wrong if you’re a photon. No time will pass as you cross the universe
It’s not useful to tell somebody it is constant without a way to make use of it. Without knowing how it’s defined relative to other things we can’t use it.
The thing about all the absolute physical constants is that they are almost all based on units defined relative to other things. Unitless constants (defined only as a ratio) are extremely rare (like the fine structure constant) - but even then you have to make up units to measure them (although you can still agree on unitless values with somebody else who chose different base units for measurements).
https://en.wikipedia.org/wiki/Dimensionless_physical_constant
Every metric of speed of light is necessarily relative to other things. Even if you define as 1, now you must be able to know what one unit of time is relative to one unit of distance, and if you do not know that then you do not know that your speed of 1 means.
All fundamental units are defined relative to each other in physics, and all other units are defined relative to the fundamental units.
https://en.wikipedia.org/wiki/SI_base_unit

Everything in physics is defined by relative properties. Scale all fundamental units by the same factor and we can not detect any change in behavior whatsoever
Natanael@slrpnk.netto
Technology@lemmy.world•ONLYOFFICE accuses "Euro-Office" maker Nextcloud and IONOS of License ViolationEnglish
0·4 days agoYes, a creator can create a closed source copy (independent of the GPL’d work), assuming they have full ownership or permission from all contributors
It’s not fully academic only because it’s common for companies to develop a GPL version and offer commercial licenses where the corporate customer is exempt
But none of this affect the users of the GPL version, so most people don’t care
Natanael@slrpnk.netto
Technology@lemmy.world•ONLYOFFICE accuses "Euro-Office" maker Nextcloud and IONOS of License ViolationEnglish
0·4 days agoYou can’t call it GPL3 and at the same time claim the copyright.
Weil you can (because you still own the copyright after giving your work that license), but you have given a legally binding promise to not impose additional restrictions so it won’t do you any good to try
Natanael@slrpnk.netto
politics @lemmy.world•The US president just instructed the USPS to seize any ballots cast be anyone not approved by the federal government.
0·5 days agoExtremely seditious, and absolutely disqualifying all on its own under 14A3
Natanael@slrpnk.netto
World News@lemmy.world•Attack on US radar plane at Saudi base raises concern over Iran’s capabilitiesEnglish
0·5 days agoIt raises concern that USA didn’t even think of activating defense systems because they thought Iran would just surrender
Natanael@slrpnk.netto
World News@lemmy.world•Russia took satellite images of U.S. airbase in days before Iranian attack, Ukraine's Zelenskyy saysEnglish
0·8 days agoEither they have sources inside satellite imaging operators, or a satellite with ground track imaging was routed to fly over
Natanael@slrpnk.netto
Privacy@lemmy.ml•Spez (Reddit CEO) just put out an announcement talking about how they'll verify bots vs humans. Get ready for a wave of new users into the Fediverse pretty soon!
0·11 days agoThey made the prices so insane that most 3rd party apps couldn’t justify the higher subscription price

It shouldn’t generally be obvious they are blocked. Especially for texts (that aren’t RCS) they should learn nothing