IBM Models Human Blood System To Build Solar Power Prototype

A Cray 2 requires 200KW. The panels claim 80% efficiency, so you'd need 200/0.8 = 250KW. Sun intensity, ignoring atmosphere and with optimal panel orientation, is around 1.3KW/M^2. So you'd need 192 M^2 of panels. In practice you'd need space for panel orientation gear, plus atmospheric attenuation would reduce power, so you'd need rather more than that, but it's entirely practical. However, no running the Cray at night.

The Cray 2 had 1.3GF of floating-point processing power. A single i7 chip has 109GF, double-precision. The Cray 2 was without doubt one of the coolest looking computers ever built, but the technology is rather dated. You could comfortably emulate it on a modern desktop.

*European, not handegg.

Source: http://rss.slashdot.org/~r/Slashdot/slashdotScience/~3/HgrnTFH9uFI/story01.htm

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