Exhaustive, commented, list of units
futureboy.us
Exhaustive, commented, list of units
1–10 of 36 posts
Re: Exhaustive, commented, list of units
#2Check it out if for no other reason than to read the rant about how poorly defined the candela is.
Re: Exhaustive, commented, list of units
#3energy := c^2 // convert mass to energy
Looks like it's missing some mass.
Re: Exhaustive, commented, list of units
#4energy := c^2 // convert mass to energy Looks like it's missing some mass.
You're right. I just emailed a bug report.
Re: Exhaustive, commented, list of units
#5energy := c^2 // convert mass to energy Looks like it's missing some mass.
You're right. I just emailed a bug report.
Thanks for the report, but this shouldn't be considered a bug. That unit is defined so that you can write "1 gram energy" or the like to find the energy content in that particular amount of mass. It's actually shorter (on a reasonable keyboard) to type "c^2" though, so this may not really be necessary. I may remove it from the data file.
Re: Exhaustive, commented, list of units
#6energy := c^2 // convert mass to energy Looks like it's missing some mass.
There's also a comment in Kelvin regarding how the triple point of water is defined to be at 0.01 °C, not 0 °C, that reads a little confused. I wonder why it's defined like that, anyway.
The bit is used for information because information is almost defined as the expected length of an optimally (context-free) coded word, using a base 2 code. Some physicists prefer base e, in which case it's measured in nats.
Re: Exhaustive, commented, list of units
#7Earlier quoted context omitted.
You're right. I just emailed a bug report.
Thanks for the report, but this shouldn't be considered a bug. That unit is defined so that you can write "1 gram energy" or the like to find the energy content in that particular amount of mass. It's actually shorter (on a reasonable keyboard) to type "c^2" though, so this may not really be necessary. I may remove it from the data file.
That makes sense. I actually like the way that reads, and would suggest keeping it and adding sample usage to make it absolutely clear to people.
Re: Exhaustive, commented, list of units
#8It's not a complete list of units without the hella- prefix.
Re: Exhaustive, commented, list of units
#9energy := c^2 // convert mass to energy Looks like it's missing some mass.
There's also a comment in Kelvin regarding how the triple point of water is defined to be at 0.01 °C, not 0 °C, that reads a little confused. I wonder why it's defined like that, anyway. The bit is used for information because information is almost defined as the expected length of an optimally (context-free) coded word, using a base 2 code. Some physicists prefer base e , in which case it's measured in nat s.
the triple point of water is defined as 0.01 °C in order for a difference of 1 °C to be equal to a difference of 1 K.
To put it another way, the triple point of water is known to be 273.16 K, and the boiling point 373.15 K. Now if this mapped on to 0 °C and 100 °C, then we'd be left with a situation where 100 kelvins would be equivalent to 100.01 Celsius degrees. Instead, by defining the triple point of water as 0.01 °C (still 273.16 K), we now get an interval of 100 kelvins being equal to an interval of 100 Celsius degrees.
This is also why the term centigrade is no longer used... it's no longer 100 even.
Re: Exhaustive, commented, list of units
#10what? no Helens
beauty =!= H
Helen := H // The beauty required to launch a 1000 ships
// A mH is the beauty required to launch 1 ship