28-ton, 1.2-megawatt tidal kite is now exporting power to the grid
Minesto’s fully operational Dragon 12 looks like some sort of futuristic military drone – but it behaves remarkably like a kite underwater. It uses lift generated by tidal flows to fly patterns faster than the currents, harvesting renewable energy. Solar energy is the bedrock of most renewable energy grid plans – but lunar energy is […]
The Erlang Runtime System
6> lists:sort(lists:seq(10000, 1, -1)). [1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22, 23,24,25,26,27,28,29|…] % 15:48:42.208 ({erlang,apply,2}) % lists:sort([10000,9999,9998,9997,9996,9995,9994,9993,9992,9991,9990,9989,9988,9987,9986, % 9985,9984,9983,9982,9981,9980,9979,9978,9977,9976,9975,9974,9973,9972,9971, % 9970,9969,9968,9967,9966,9965,9964,9963,9962,9961,9960,9959,9958,9957,9956, % 9955,9954,9953,9952,9951,9950,9949,9948,9947,9946,9945,9944,9943,9942,9941, % 9940,9939,9938,9937,9936,9935,9934,9933,9932,9931,9930,9929,9928,9927,9926, % 9925,9924,9923,9922,9921,9920,9919,9918,9917,9916,9915,9914,9913,9912,9911, % […] % 84,83,82,81,80,79,78,77,76,75,74,73,72,71,70,69,68,67,66,65,64,63,62,61,60, % 59,58,57,56,55,54,53,52,51,50,49,48,47,46,45,44,43,42,41,40,39,38,37,36,35, % 34,33,32,31,30,29,28,27,26,25,24,23,22,21,20,19,18,17,16,15,14,13,12,11,10,9, % 8,7,6,5,4,3,2,1]) % 15:48:42.210 ({erlang,apply,2}) lists:sort/1 -> % [1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22, % 23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41, % 42,43,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58,59,60, % 61,62,63,64,65,66,67,68,69,70,71,72,73,74,75,76,77,78,79, % 80,81,82,83,84,85,86,87,88,89,90,91,92,93,94,95,96,97,98, % 99,100,101,102,103,104,105,106,107,108,109,110,111,112,113, % […] % 9951,9952,9953,9954,9955,9956,9957,9958,9959,9960,9961, % 9962,9963,9964,9965,9966,9967,9968,9969,9970,9971,9972, % […]
It Can Be Done
Tom Van Vleck The late André Bensoussan worked with me on the Multics operating system at Honeywell in Cambridge. We were working on a major change to the file system, which required a subsystem, the VTOC manager, to manage file description information. It had to transport the file information between disk and memory, manage a […]
FOSDEM 2024: my experience, some notes and tech tips
I finally went to FOSDEM. I’m sleep-deprived, completely exhausted, but incredibly excited about the whole experience. FOSDEM in one picture. I’ve split this post into three separate sections. FOSDEM (Free and Open source Software Developers’ European Meeting) is a huge non-profit, volunteer-organized conference that’s free of charge to attend thanks to sponsors and donations. It […]
The Nasdaq is in an A.I.-led bubble
“Before we work on artificial intelligence why don’t we do something about natural stupidity?” —Steve Polyak You don’t need to be an expert in semiconductors or A.I. to know that something is not quite right with the Nvidia valuation. As of yesterday’s market close, Nvidia was selling for a market cap of $1.5 trillion, up […]
Crowd Attacks Waymo, Sets It on Fire
In a disturbing scene, a crowd in San Francisco surrounded an empty Waymo Robotaxi the evening of Feb 11, then began vandalizing it and breaking its windows. At some point, the vehicle was set on fire. San Francisco Fire attended to it but the vehicle is presumably destroyed. Video posted on X shows 4 portions […]
Where did DNA come from?
Click here to listen to the full podcast episode Let’s get going by hopping into a time machine and setting the clock back roughly 3.7-4.4 billion years…. We’ve ended up somewhere around the time that scientists think life first started on Earth. The planet looks very different to the one we know today. Of course, […]
Cousins are disappearing. Is this reshaping the experience of childhood?
Noelene Lancastle grew up surrounded by 27 cousins and 10 second cousins. They were a range of ages and had what seemed like a world of experiences, always ready to teach her to skateboard or swim, help carry heavy boxes, play with her on camping trips or have her back in school in North Delta, B.C. “There were […]
Can tin foil hats block anything?
4 Answers
Google/orbit – C/C++ Performance Profiler
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