Wattvision: Understanding your electricity meter with Wolfram Alpha

#1

Post by agrinshtein » Thu, May 21, 2009, 12:07 AM UTC

Wattvision: Understanding your electricity meter with Wolfram Alpha
wattvision.posterous.com

Re: Wattvision: Understanding your electricity meter with Wolfram Alpha

#2

Post by jrockway » Thu, May 21, 2009, 1:46 AM UTC

Of course, many other tools can do this almost-trivial unit conversion for you. Unless you have forgotten how many seconds are in a minute or how many foos are in a kilofoo, you should be able to do this in your head...

Re: Wattvision: Understanding your electricity meter with Wolfram Alpha

#3

Post by likpok » Thu, May 21, 2009, 2:05 AM UTC

This does not actually showcase the power of Wolfram Alpha. For instance, Google will do unit conversions aw well.

Now, if you wanted to integrate that...

Re: Wattvision: Understanding your electricity meter with Wolfram Alpha

#4

Post by savrajsingh » Thu, May 21, 2009, 3:16 AM UTC

likpok wrote: post #3

This does not actually showcase the power of Wolfram Alpha. For instance, Google will do unit conversions aw well. Now, if you wanted to integrate that...

Really? "7.2 watt-hours in 15 seconds in watts" doesn't "just work" in google. Can you post a one-liner that does the same calculation in google or other site?

Re: Wattvision: Understanding your electricity meter with Wolfram Alpha

#5

Post by Oompa » Thu, May 21, 2009, 4:47 AM UTC

savrajsingh wrote: post #4

likpok wrote: post #3

This does not actually showcase the power of Wolfram Alpha. For instance, Google will do unit conversions aw well. Now, if you wanted to integrate that...

Really? "7.2 watt-hours in 15 seconds in watts" doesn't "just work" in google. Can you post a one-liner that does the same calculation in google or other site?

http://www.google.com/search?hl=en&safe=off&q=7.2+wa...

Works fine, used it all the time in my Physics class.

Re: Wattvision: Understanding your electricity meter with Wolfram Alpha

#6

Post by savrajsingh » Thu, May 21, 2009, 6:49 AM UTC

Oompa wrote: post #5

savrajsingh wrote: post #4

Earlier quoted context omitted.

Really? "7.2 watt-hours in 15 seconds in watts" doesn't "just work" in google. Can you post a one-liner that does the same calculation in google or other site?

http://www.google.com/search?hl=en&safe=off&q=7.2+wa... Works fine, used it all the time in my Physics class.

That calculation is not the same one I'm asking for. It's not watts per hour as you've written -- it's actually watt-hours (watt * hour). The answer is also incorrect -- it's not 0.03 watts -- it's 1730 watts. So my request still stands -- show me a one-liner for my original calculation. It's not as simple as you think. ;)

Ok I did some more experimentation and discovered this: http://www.google.com/search?hl=en&ei=ePsUSs_lJ6HqtQP7l8...