check out this Linux Super Computer powered entirely by bicycles.

SiCortex is the first company to engineer a Linux cluster from the silicon up demonstrated the opportunity for power savings in high-performance computing. The SC648 computer conducted complex genomics analysis at billions of calculations per second while being powered by a team of 8-10 bicyclists.

SiCortex has demonstrated a Linux-based SUPERCOMPUTER POWERED BY BICYCLES. The SC648 computer "conducted a complex genomics analysis at a rate of billions of calculations per second while being powered by a team of 8-10 bicyclists riding generator-equipped bicycles" at WIRED'S NextFest.