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Showing content with the highest reputation on 12/11/2020 in Posts

  1. 2 points
    Sure - let's do that. Here's the entire list unless you have something new.
  2. 1 point
    The university's goal is to "change our narrative, not our name." https://www.usatoday.com/story/news/education/2020/12/09/johns-hopkins-university-person-slavery-name-change/3866364001/
  3. 1 point
    Easy. By the standards of the time there were already compelling arguments that had convinced the nation as a whole that slavery was wrong. Confederate generals made the active decision to join a rebellion against the nation in order to preserve slavery despite having access to all of the prevailing thought that showed slavery to be evil. Hopkins on the other hand (if the above info is correct) had slaves as a result of living in his time but made the active decision to oppose the institution of slavery and call for its abolition.
  4. 1 point
    It seems there is a lot of activity in a competing technology, fuel cells. Especially with a new thin polymer that can strip the nitrogen away from ammonia, and some innovative way of making ammonia more efficiently. I don’t have the link to post, but it seemed to be real. Ammonia infrastructure is well established and relatively low pressure requirements should make it possible to be distributed by existing gas stations with reasonable investment. Getting hydrogen for a fuel cell from ammonia is a very interesting alternative. It is important to not be tempted to allow batteries to be prematurely declared the technology winner by having government subsidize it exclusively. Should be something like an X-prize for the ability to provide electricity for vehicles by any means whether battery or fuel cell or whatever.
  5. 1 point
    Good point dear d123, Some people instinctively "retreat" to false optimism. OTOH some people instinctively over-react. ... fear the worst ... My ex-wife used to get furious at me if I scared her (e.g. driving on ice). Her fear hormones, adrenaline, dopamines, etc. rose much faster than her logical mind could invent solutions. Ergo scary emotions dominated her mind during potential accidents. I had not planed to scare her, nor was I happy about sliding sideways down an icy road, but I maintained my cool and avoided a collision. It helped that I grew up in a climate with plenty of snow and ice and had briefly lost control dozens of times on slippery roads. But I had also learned how to quickly regain control on icy roads, so I expected to conclude, upright, in the middle of the road, with no dents, dismemberment or deaths. Yes, something scary happened, but she was the one who chose to be terrified. I - on the other hand - was too busy avoiding a collision to get scared. It was only afterwards that I acknowledged that I was scared. We hope that is the difference between the general public and skydivers. We hope that skydivers are too busy solving problems (fight or flight) to relax into "freezing" in the face of danger.
  6. 1 point
    One of the most ridiculous things happened to me today (even though it's completely my fault, I find it very very very improbable set of coincidences). I jumped hop 'n' pop from 1200m and didn't bother to put on my jumpsuit and went with shorts and shirt instead. After packing the canopy, I put my pull-up cord in the pocket (no zipper or anything). Upon jumping and deploying, the cord slipped from the pocket, went up into the canopy at some point during the snivel, passed through the slider grommet and locked the slider up. I managed to get it down somewhere a bit above 700m. I've had my hard deck set for ~650m (the decision to cutaway). There was a lot of thermics and the canopy seemed too unstable to be safely landable. I've always looked at "don't jump with stuff in your pockets" as "you can drop that stuff and lose it + it could kill someone below. Never considered it could also go up. The takeway: don't jump with wih stuff in your pockets (that could slip out).
  7. 1 point
    Well, apparently, men giving each other Chronic Traumatic Encephalopathy, are considered essential workers.
  8. 1 point
    Interestingly enough, when I first got a three-ring (I started in the days of Capewells, and "graduated" to R-2's when I got my first rig), I practiced one hand on each. Repeatedly. Then when I had my first cutaway, there were both of my hands on my cutaway, and both of them on the reserve. I guess since I'd trained originally to pull my reserve with both hands once I had a piggyback, it just went that way. So ever since I've just assumed I'll do it that way, and I haven't disappointed myself, or bounced, yet. I'm one of those chesty women who can't see her reserve handle while arching, but it still just works that way. Wendy P.
  9. 1 point
    If my memory is not too fogy, this happened at Z-Hills and was caught on video, maybe 10 years ago.
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