by "bhtooefr" (bhtooefr)
Published 09/27/2017 at 22:33
by "bhtooefr" (bhtooefr)
Published 09/27/2017 at 22:33
Tags: electric vehicles
; tesla
STARS: 0
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Here, have everyone’s favorite Norwegian Tesla evangelist to explain it.
"Phyrxes once again has a wagon!" (phyrxes)
09/27/2017 at 22:38, STARS: 0
As I tell my Physics students all the time, if it seems like the correct unit isn’t being used its generally because the average consumer is less than informed and doesn’t want or care enough to understand.
Lightbulbs are a perfect example, I dare you to go into your home improvement store of choice and ask for 800 lumen light bulbs.
"WRXforScience" (WRXforScience)
09/27/2017 at 22:56, STARS: 1
Kilowatts are a measure of power while kilowatt-hours are a measure of energy (what’s the problem just using Joules?).
1kW*h is 3.6MJ or 3,600,000J or about 1.5 Big Macs.
"KusabiSensei - Captain of the Toronto Maple Leafs" (kusabisensei)
09/28/2017 at 09:12, STARS: 0
The reason we don’t use joules in the US is because almost no one actually understands how to use scientific notation for large numbers, nor does anyone know their prefixes correctly.
Watt-hours and kilowatt-hours are much easier to deal with, since you generally don’t have to deal with scientific notation on bills.
What would you rather see on your electric bill: a charge for 1500kWh or 5400000000J?
Measures have to be understandable by those using them to mean anything. For better or worse, a kilowatt-hour is pretty self explanatory (use one kilowatt of power for one hour), whereas finding someone who can explain what a newton-meter is (or even an amp-ohm is, or God forbid, a meter squared kilogram per second squared is).