Students Power Supercomputer with Bicycles 148
inkslinger77 writes "A team of ten MIT students powered a supercomputer for twenty minutes by pedaling bicycles. They duly claimed the world record for human-powered computing (HPC). They powered a SiCortex SC648 supercomputer with a Linux cluster of 648 CPUs and almost 1TB of main memory in a single cabinet. The system is low-powered and draws 1,200 watts without needing special power supplies or cooling..."
Manufacturing uses energy too (Score:1, Interesting)
New record? (Score:5, Interesting)
Re:Question (Score:2, Interesting)
pedal power overview (Score:2, Interesting)
Conversion efficiency needs improvement (Score:2, Interesting)
I once took part in a nutrition study that required each participant to ride a stationary bicycle for 20 min or so. I asked the lead researcher how much power a typical college student could produce. He said a healthy college student could produce about 180W for the duration of a test session.
The test itself was uncomfortable. There was no breeze to keep you cool (and, since the human body is only about 25% efficient, that meant you were dissipating > 500 W as heat), and you had to wear a mouthpiece to measure your oxygen uptake.
For that reason, I'm a little surprised that 10 cyclists without mouthpieces could only produce 1.2 kW for 20 min. Either their generators, drive mechanisms, and converters are not very efficient (most likely) or the MIT students need to do more exercise to get in better shape.
Re:Question (Score:2, Interesting)
i have 4,1watts per kilo gramm body mass. tour de france dudes have about 5 w/kg.
so the 120w they are pedaling is (unless they wheight about 30kilos or so) really onle recreation
for those who wonder what i am doin here... yes i do studi informatik in germany
black forrest 4 the win!
Bicycle Power Calculator (Score:2, Interesting)