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Reddit's redesign increases power usage of user's devices

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Re: Reddit's redesign increases power usage of user's devices

#31
post #7

Headline is wrong. 68GJ per month, not GW, which is roughly 26kW.

When converting 68GJ to another unit of energy, it would be 18,888KWh or ~18GWh (note that h!). EDIT: But of course, 18GWh/68GJ "per month" also gives us an average continuous power consumption of 26KW, as you have said.

No, he just dropped the per month part. 68 GJ / month, is 68 * 1 billion watts / 30 * 24 * 60 * 60 seconds, is 26 kw

Re: Reddit's redesign increases power usage of user's devices

#32
post #23

Earlier quoted context omitted.

This place has a really strong pro-cloud pro-JS bent tho

Pro js? Seems every thread about something built in javascript is full of people bashing it.

JavaScript is a pretty popular language. Also HN is a slice of the developer community at large. I think anything that discusses JS is going to look pro-JS to a person that hates it.

I don't think parent will find any high traffic developer discussion forum where people don't discuss JavaScript.

I admit I don't like the language, but there's definitely both camps on this site, seemingly in similar proportions.

Re: Reddit's redesign increases power usage of user's devices

#35
post #27
post #13

Earlier quoted context omitted.

Rather than just being flat out wrong, why not use gigawatt-hours which is a well known unit.

Because I find Wh (or kWh or MWh or...) a very weird unit. The Watt is already a "per second" unit, and the appended hour makes it have a double time component in the definition. While a Wh has a simple joule value (3600 if I'm not mistaken) and so it's directly convertible, I still find it more difficult to wrap my mind around. Joules seem like a better unit, but they're not known to people... but maybe you're right…

"Adding the hour" doesn't make it have "two time components" -- it makes it have no time component.

The joule is a unit of ENERGY.

The watt is a unit of {WORK,POWER}. Confusingly, the germanic languages use "Work" for the concept ("Arbeit" in DE or "Arbeid" in NL), but in English it is "Power". Power means transfer of ENERGY over TIME. Specifically, the Watt it is defined as one Joule per second.

So Watts are a unit of POWER. And POWER=ENERGY/TIME. Note that this is a divison, not a multiplication!

So what do you get by multiplying a Watt by a unit of time (in this case hours)?

  > We're multiplying: WORK * TIME  [Watt * Hour]
  > Which is: (ENERGY/TIME) * TIME  [(Joule/Second) * Hour]
  > And the result is.....: just ENERGY
As you can see, the Watt-Hour is a unit of energy, just like the Joule. There is nothing weird about it.

Hope that could clear things up -- best greetings from the Netherlands!

Re: Reddit's redesign increases power usage of user's devices

#38
post #31

Earlier quoted context omitted.

When converting 68GJ to another unit of energy, it would be 18,888KWh or ~18GWh (note that h!). EDIT: But of course, 18GWh/68GJ "per month" also gives us an average continuous power consumption of 26KW, as you have said.

No, he just dropped the per month part. 68 GJ / month, is 68 * 1 billion watts / 30 * 24 * 60 * 60 seconds, is 26 kw

EDIT: Doh! It appears I missed what blutfink was trying to say and that their changing of quantities from energy to power was intentional. Sorry for the confusion.

Re: Reddit's redesign increases power usage of user's devices

#40
post #29
post #27

Earlier quoted context omitted.

Because I find Wh (or kWh or MWh or...) a very weird unit. The Watt is already a "per second" unit, and the appended hour makes it have a double time component in the definition. While a Wh has a simple joule value (3600 if I'm not mistaken) and so it's directly convertible, I still find it more difficult to wrap my mind around. Joules seem like a better unit, but they're not known to people... but maybe you're right…

All over the world, the watt-hour is the unit of electrical power consumption among the general public.

I suppose you're right at that: by trying to dig deeper to understand it, I confused myself and stopped using what is the generally accepted standard... I guess I should indeed have used kWh.
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