lately i've been perplexed by the question of who invented the biohazard symbol. a few days ago i was reminiscing about a job i had the summer after senior year of high school at the great valley rehabilitation hospital. i worked as a "maintenance associate"...OK, i was a janitor in a hospital for old people on their way out (and a few poor teenagers and kids who got royally fucked up in car crashes. ah. .. the ole BTU...brain trauma unit. what an uplifting part of my day it was to visit that part of the hospital. anyway... i sometime wonder who it was that came up with the "biohazard" logo, since we'd always be dealign with trash bags that carried that log. it turns out it was a u.s. government scientest named charles baldwin. good job, charles!
Teaching a drone to fly without a vertical rudder
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We can get a drone to fly like a pigeon, but we needed to use feathers to
do it.
1 hour ago
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