https://frinklang.org/ https://frinklang.org/frinkdata/units.txt https://frinklang.org/fsp/frink.fsp
crocodile := megavolt // used informally in UK physics labs
...
footcandle := lumen/ft^2 // Illuminance from a 1 candela source
// at a distance of one foot
...
// In Britain, the deal is apparently any piece of wood over 6 feet long, over
// 7 wide and 2.5 inches thick. The OED doesn't give a standard size. A piece
// of wood less than 7 inches wide is called a "batten". This unit is now used
// exclusively for fir and pine.
deal := 12 ft 11 in 2.5 in // The standard North American deal [OED]
wholedeal := 1/2 deal // If it's half as thick as the standard
// deal it's called a "whole deal"!
splitdeal := 1/2 wholedeal // And half again as thick is a split deal.
...
parasang := 3.5 mile // Persian unit of length usually thought
// to be between 3 and 3.5 miles // Beware the SI's broken definition
// of Hz. You should treat the radian as being correct, as a fundamental
// dimensionless property of the universe that falls out of pure math like
// the Taylor series for sin[x], and you should treat the Hz as being a
// fundamental property of incompetence by committee.
...
// You are perfectly right. You are perfectly wrong. You look dumb and
// unreasonable. The person arguing the opposite looks dumb and unreasonable.
//
// Hz == YOU CANNOT WIN
//
// (Insert "IT'S A TRAP" image here.)[0] https://github.com/tiffany352/rink-rs/ [1] https://github.com/tiffany352/rink-rs/blob/master/core/defin... [2] https://rinkcalc.app/
"By using our Fahrenheit to Kelvin conversion tool, you know that one Fahrenheit is equivalent to 255.93 Kelvin. Hence, to convert Fahrenheit to Kelvin, we just need to multiply the number by 255.93. We are going to use very simple Fahrenheit to Kelvin conversion formula for that. Pleas see the calculation example given below."
By using our Celsius to Fahrenheit conversion tool, you know that one Celsius is equivalent to 33.8
1000 C = 1000 x 33.8 = 1832 F
Then it converts 231 in^3 to 0.99999994293884 U.S. gal, while 1 U.S. gal converts to 231 in^3.
I'd love to have an HP48 CLI to do unit calcs with.
.5 * 10_m/s^2 * (15_s)^2 = 1125_m
sqrt(6.673E-11_N*m^2/kg^2 * 5.98E24_kg / 6780_km) =
242603.08_N^.5*m/(kg^.5*km^.5)
Everything else I've found have been just super fiddly.
You have: .5 * (10 m/s^2) * (15 s)^2
You want:
Definition: 1125 m
You have: sqrt((6.673E-11 N*m^2/kg^2) * (5.98E24 kg) / (6780 km))
You want:
Definition: 7671.783 m / sI'm sure messing around with that will never get old.
A.) ...one gram of DNA can store up to 215 Petabytes or [215,000 Terabytes], knowing that the human being has about 600 grams of DNA [129,000,000 TB]. (1)
B.) Now assume a human is traveling at the speed of sound in air on earth (~343m/s):
343 m/s * 129,000,000 TB * 1/1,000,000,000 s/ns,
The result is that for every kilometer the human travels at the speed of sound, the information stored in that human’s DNA yields a data transfer rate of approximately 44.3 TB/ns. Seems reasonable.
1.) https://www.bibalex.org/SCIplanet/en/Article/Details.aspx?id....
Can you share what types of use cases you've seen people use KodyTools for?
For me, a different UI could fix the problem. Give me a field where I can ask directly "how many cups are in 4.37 cubic meters?"
As it stands now, I can get the answer from any search engine or voice assistant more quickly than from this site.
Also, I thought "Library of Congress" was a standard unit of measurement? Not to mention the "standard reference pear".
1. <https://imgur.com/gallery/VI0B0nl>
2. <https://twitter.com/SheriffAlert/status/1221881862244749315>
$ units GeV/c^2
Definition: 1.7826619e-27 kg
$ units
Currency exchange rates from FloatRates (AUD base) on 2023-06-21
3761 units, 113 prefixes, 120 nonlinear units
You have: GeV/c^2
You want: [leave it blank]
Definition: 1.7826619e-27 kg
You have:
G- giga
giga- 1e9 # Greek gigas, "giant"
e 1.602176634e-19 C # electron charge (exact)
C coulomb
coulomb A s # charge
A ! # The ampere, symbol A, is the SI unit of electric current. […]
s ! # The second, symbol s, is the SI unit of time. It is defined […]
V volt
volt W/A # potential difference
W watt
watt J/s # power
J joule
joule N m # energy
N newton
newton kg m / s^2 # force
kg ! # The kilogram, symbol kg, is the SI unit of mass. It is […]
m ! # The metre, symbol m, is the SI unit of length. It is […]
c 299792458 m/s # speed of light in vacuum (exact)
I really like the approach of specifying what you have, in absolutely whatever unit you like, and what you want (though I omitted that argument in this case, to just have it show the definition), and having it resolve it.
An excerpt from my ~/.units (which does have some serious stuff in it too, honest):
# Why not? (Question: is the slightly-Welsh-sounding ygazillion, yocto-gazillion, 10⁻²⁴ gazillion, greater or less than one?)
gazillion !
elephant 6.35 tonne
elephant_african 6.35 tonne
elephant_asian 5 tonne
# I want to have ranged values: elephant_baby 90–135 kg. This get complicated because of non-linear transformations, e.g. 2^(1–10) = 2–1024, but log₂-biased.
# baby_grand is also a babyIMO, any converter needs one, so add it or make it easier to find.
I see 5 circular buttons: Facebook, LinkedIn, Twitter, WhatsApp, and a “Copy url to clipboard” one.
The library incorporates dimensional units into the C++ type system with an emphasis on correctness (including considerations for overflow, rounding, loss of precision, etc) and minimal runtime overhead.
As a very simple example of what using this library could look like, here is a tiny code snippet taken from one of the tutorials:
constexpr double speed_mph = 65.0;
constexpr double speed_mps = (miles / hour)(speed_mph).in(meters / second);
const auto time = hours(1.0)
const auto distance = miles(65.0)
const auto average_speed = distance/time;
From a user's point of view (I am a physicist by training), I find the library wonderfully unobtrusive and "natural" to use.
I developed a similar library for Nim, `unchained` [0]. Thanks to Nim's extensive macro system it's a pleasure to use (from a short look at the `au`'s docs my biased opinion is it beats `au` on usability :) ).
The main limitation I see is that it seems you are limited to picking the units to convert between from predefined lists. If someone gave you say a volume specified in nmi ft^2 for instance and you wanted to convert it m^3 you'd have to do nmi to m and ft^2 to m^2 and then multiply the results to get nmi ft^2 to m^3 because nmi ft^2 is not on the volume unit list.
Those cases are probably pretty rare. It is not often that you run in to people who give you say a gasoline consumption rate of 23 picoacres or give you a cookie recipe that calls for 1.6 barn megaparsecs of vanilla. (BTW, those are 0.04 gal/mile and 1 tsp, respectively).
Molar Concenration -> Molar Concen(t)ration
If this is how you get to "5000 units" then that feels a bit cheaty
It has zillions of base units and a algebra syntax for definitions of many more
Edit: "common" units https://github.com/ucum-org/ucum/tree/main/common-units
So, mi/g => l/km requires a different kind of conversion than most of the others shown. You have to first convert mi/g to g/mi, then you can convert to l/km and then multiply by 100.
Frankly, I think the European method makes a lot more sense to me, especially as you get to higher and higher levels of efficiency. With mpg, the numbers get stupidly big when you're saving relatively small amounts of fuel. With l/km, the numbers get smaller and smaller as you increase your efficiency, and it shows you how relatively little you're actually increasing the amount of fuel saved.
Metric intervention https://userscripts-mirror.org/scripts/show/130277 > Converting that old French system the Brits are still using to the metric standard of science. ~ foot, inch (00',00",00'00,00'00"), yard, mile, stone, Pound-mass/Lbs., Gallon ~ It will totally convert something heretical like: 1'23 1/4" x 2'12 5/8" into something elegant and civilized like 89.535 cm x 93.0275 cm
This (uhm) didn't take a year to make but it was rather useful when I needed it.
https://www.unix.com/man-page/v7/1/units/
$ units You have: 1 foot candle You want: lumens meter * 0.310896 / 3.2165097
Many cooking utensils I have at home are either in ml or oz but not both.
> www.kodytools.com Server: dns9.quad9.net Address: 9.9.9.9
** dns9.quad9.net can't find www.kodytools.com: Non-existent domain
I run a similar site (dateful.com) and I promise the EU regulators don't come after sites like ours. :)