Edit: Alt Text: Speed limit c arcminutes^2 per steradian.
You must log in or register to comment.
There’s nothing wrong with kilowatts, it’s an SI unit. The problem is hour, which is 3600 seconds, and we have ancient Egyptians to blame for this, who divided the day into 24 hours despite having already developed base-10 numerical system.
Kilowatt per kilosecond, which is 1 megajoule, would work better.
I really don’t get the issue with kWh. Things are rated in W and we mostly care about the hours they’re powered on. If I wanna figure out how many kWh a PC that needs 300W used in 4 hours, I multiply 30*4. If I wanna know how many joules it used, I have to do 300*4*3600. Only one of those can be done in your head in 3 seconds.
You gotta use an escape character, specifically a backslash ( \ ), when dealing with *s on lemmy.
Otherwise you end up with “stufflike this!”
When it could have been “stuff*like this*!”
ETA: Damn, you’re good. Fixed it before I even finished this post!
kWh is already an uncanceled unit, drives me nuts even without adding per day
(Energy / time) * time? fuck you
It’s because the times aren’t the same. Maybe same unit but different context so they can’t be canceled.
It’s like saying you work 8 Hours/day (Eight hours per day). Both are units of time, but their context is different and their combination forms a new meaning beyond the units.
1 KWh is using 1KW for one hour. Because of demand pricing the time you use that KW is important. Like in terms of energy grid using a whole ton of power for one minute vs same total over a long time is different and important dispite being the same amount of energy.
Edit: some phrasing
I know why but it’s stupid and arbitrary and the arbitraryness is what’s forcing it.
It’s the time. It’s always the time.
SI units are all derived from seconds but instead of working with kiloseconds we have minutes and hours and days with a bunch of idiotic conversions.
The “second” you invite time into your measure, you invite some real bullshit ad-hoc pseudo-unit convenience units and fuck them. May as well just go imperial and have 14 rods to the fucking hogshead.
Is that a standard hog or a chefs hog?
I need the alt text!
Sorry! I added it now.
Going from Watts to BTU’s while researching for a solid state multi-power-state TEC cooling solution. I feel this.
But what temperature is that at? And what is the ambient temperature? And what if the power is not at exactly 120V? And what about if I put a fresh dead hooker in it every day?
If we just used watts life would be so much easier.
The beauty of SI units is you just add or remove zeroes.
Unless you’re converting seconds to minutes, hours, days, years, etc.
Then you get things like watt hours. Or light years.
Which is why neither are SI-units
The Hives were right, we need to convert to the metric system for time.
Fun trivia. It’s called a second because it’s the second division of an hour after minutes. You can keep going with thirds and fourths for sub second time.
