*puffy* japanisthebest Posted September 10, 2013 Posted September 10, 2013 here you must come up with 1000 facts, make sure to number them ^.^ 100 200 300 400 500 600 700 800 900 1000! 1. the energy in 215 big macs is the same amount of energy that can move a car up to 35 kilometres
CaptainPanic Posted September 10, 2013 Posted September 10, 2013 2. A Big Mac is not the same size across the world, and therefore cannot be used as a unit for energy.
ydoaPs Posted September 10, 2013 Posted September 10, 2013 3. The energy of 10 Big Macs from any country/region is far more than enough to move a car 35km. E2=(mc2)2+(pc)2 Assuming we can focus all of the energy and that the car and Big Mac are at rest wrt each other, E2Big Mac=KE2car. (mc2)2=(0.5mcarv2)2 mc2=0.5mcarv2 2mc2=mcarv2 mBig Mac=200g mcar=1500kg So, v2=2(2x10-1*9x1016)/1.5x103)=24x1012 So, vcar=5x106 m/s How much do you think the rolling friction is? And that was for one Big Mac.
Iota Posted September 10, 2013 Posted September 10, 2013 (edited) 4. To build a computer with the same storage capabilities as the brain, it would require approximately 10 Tera-Watts of electricity. That's 10*10^12 (10,000,000,000,000) watts. The human brain uses about ~10 watts. (be advised, the use of the word approximately can avoid endless debate on the facts) Edited September 10, 2013 by Iota
ydoaPs Posted September 10, 2013 Posted September 10, 2013 5. If space is infinitely dense, then a 1cm stick contains all of the information we could ever have.
John Cuthber Posted September 10, 2013 Posted September 10, 2013 4. To build a computer with the same storage capabilities as the brain, it would require approximately 10 Tera-Watts of electricity. That's 10*10^12 (10,000,000,000,000) watts. The human brain uses about ~10 watts. (be advised, the use of the word approximately can avoid endless debate on the facts) About 7 billion such computers have been built without needing that much power in aggregate, never mind individually. Not only that but they were produced fairly cheaply and usually by unpaid labour.
Iota Posted September 10, 2013 Posted September 10, 2013 (edited) About 7 billion such computers have been built without needing that much power in aggregate, never mind individually. Not only that but they were produced fairly cheaply and usually by unpaid labour. Were they purely data storage arrays, or actual functioning computers? I assumed the accuracy of the statement because I copied it word for word by Laurence Krauss in an interview he was in, I'm 99% sure. (attempting to source where he said it, think I found the interview but it's 1.5 hours long, this will be fun.) OK, so I didn't quote him, I paraphrased him. My apologies Krauss: https://www.youtube.com/watch?v=eY1pDkP9Qxk 0:43:00 minutes in. Edited September 10, 2013 by Iota
John Cuthber Posted September 10, 2013 Posted September 10, 2013 I think most of us can be described as functioning computers rather than just data stores.
Delta1212 Posted September 12, 2013 Posted September 12, 2013 Were they purely data storage arrays, or actual functioning computers? I assumed the accuracy of the statement because I copied it word for word by Laurence Krauss in an interview he was in, I'm 99% sure. (attempting to source where he said it, think I found the interview but it's 1.5 hours long, this will be fun.) OK, so I didn't quote him, I paraphrased him. My apologies Krauss: 0:43:00 minutes in. Think about the number 7 billion. 1
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