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Relative velocity | Demonstration

22 Problems Solved in 2022

spawnflagger says...

I've personally seen the GoGoRo electric scooters mentioned #15 - it's a neat idea, and the battery-swap "kiosks" are conveniently located and fast/easy to use.
It's a good solution for any country that already has a large scooter infrastructure (like Taiwan), but don't think it would ever get adopted in USA.

Adorable Elephant Learns to Play the Drums!

Viral transmission not tested in Pfizer trials

spawnflagger says...

Just because transmissibility-reduction-effectiveness wasn't studied before the (emergency use authorization) release of the vaccine doesn't mean that it wasn't also (somewhat) effective at doing that, but just became known after-the-fact because of a much larger "study" (the general population).
The point of the pre-release studies was to determine how effective it was at preventing severe-disease and hospitalization, and those were the numbers evaluated for the EUA decision (at least in USA)
I don't know who this politician is, but seems to be trying hard to create scandal and controversy. And sure, he did uncover a lie by government officials, sort of (preventing yourself from getting sick to the point of shedding less virus does help others around you too), if they made those statements and marketing materials before such data existed to back it up.
Maybe pfizer did make those claims before the EU rollout? That wasn't shown or discussed in this video, even though it would have helped his argument by presenting that.

Certainly I agree that the phrase "speed of science" is content-less, because the scientific method doesn't define speed. The time-to-marketable-solution might be a better measurement, and that largely depends on how much money you throw at a problem.

World's Highest Jumping Robot | Veritasium

Beau schools on schooling: why 'FREE' scares Biff & Babs

spawnflagger says...

I think there should be free Community College for anyone that wants to go, but I also think college isn't for everyone, and Trade schools should also be free (I've seen plenty of plumbers that charge hourly rates more than lawyers).

As far as other colleges, there should be merit scholarships for anyone who does well at Community College can transfer to those for years 3 & 4.

I had a merit-based scholarship for my undergrad, but it was conditioned on maintaining a 3.0 GPA (B average or higher). If it went under 3.0 for two semesters, scholarship gone. Also required finishing in 4 years, so I had to take 15-18 credits every semester. I also worked part-time during semester and full-time in summers to pay down the loans (that the grants & scholarship didn't cover), so graduated debt free. I also can see I'm an exception rather than the norm.

I wouldn't begrudge anyone getting higher education. I also think some people who drop out when they are 18-22 years old, could go instead when they are older and more mature and totally succeed, so don't force it immediately after high school. Part of that is pressure from being allowed on your parents health insurance if you're in school up to a certain age... universal health care coverage (public option) would fix that and should be a higher priority than universal college. I voted for Bernie.

SpinLaunch Engineering Doc - Throwing Satellites into Space?

spawnflagger says...

I would like to see this succeed, and after seeing this video I have a bit more optimism, but it's still a lot of hurdles to overcome. And if they have an accident (release timing error > 1ms), will do major damage to their launch chamber, probably taking months of repairs to recover from. Whereas SpaceX is almost proud of their rocket failures...

I was pessimistic a few months back, after seeing Thunderfoot's "busted" videos about Spinlaunch: https://www.youtube.com/watch?v=9ziGI0i9VbE ; https://www.youtube.com/watch?v=ibSJ_yy96iE ; but his analysis is much more "armchair" whereas Brian was actually there on-site and has more (previously unpublished) information.

Scott Manley also did a video about it: https://www.youtube.com/watch?v=JAczd3mt3X0&t=4s
but it's more of a "how it works" and has a lot of overlap of info with the above Real Engineering video.

Why GM Says Its Ultium Batteries Will Lead To EV Dominance

spawnflagger says...

I think Tesla does some innovative stuff - like using the worlds largest metallic moulds (built by some Italian company if I recall, which make those exclusively for Tesla). But ultimately Elon is a "hype man", and most of his promises have fallen flat (check out Thunderf00t's youtube channel - he debunks many scammy startups as well as Elon's claims, using high school chemistry and physics).

I do applaud Tesla for opening additional factories in Germany and China so quickly, but exponential growth (for any EV maker) is impossible - there's simply not enough easy-to-mine lithium in the world. (Maybe Elon is planning to mine some asteroids instead of going to Mars? who knows)

The GM battery tech isn't exciting or sexy, but it is a means to building a more affordable EV. Ford is already shipping F-150 Lightning (assuming its not affected by the same contactor recall as the Mach-E). Rivian has been (slowly) shipping trucks.
Where's the CyberTruck? I bet even the electric Silverado will start shipping before the CyberTruck.

Moron EXPOSES Chinese Government by Accident

spawnflagger says...

the video content is not pro-Trump, and certainly not pro-China.

it definitely could be shorter though.
TL;DW = CCP pays these "influencer" "whores" to "show" that there's no genocide, and all them have "handlers" constantly following them and just go to 1 "tourist spot" in the province, but the province is so big that it would be a 15+ hour drive to get from this spot to one of the reported forced-labor camps. Also all the friendly "dancing locals" in these influencer videos are in on it, either getting paid or just forced to participate in the videos.

1:1 -Forstner Bit = round wooden sticks

spawnflagger says...

title should be "makeshift lathe jig"
Since he drilled all the way through the wood, there's nothing in this build that required forstner bits (which are for making flat-bottom holes only partially through wood).
still cool though.

Danny MacAskill Vs Wind Turbine | Climate Games

spawnflagger jokingly says...

so if the percentage increases by 1% each time his tires touch a new horizontal surface, then it should be pretty easy to reach 100% clean electricity production. Why did this BMXer stop at 29% ???
Come on man!

Why the Muon g-2 Results Are So Exciting

Why I Give Abortions

The Islands With Too Much Power

spawnflagger says...

Just ask some Cloud provider to put a datacenter on the island, and they can give them discounted kWh rates during the windy periods. Should be cheaper to run fibre for data to the mainland than the higher capacity power wires.

A very patient but frustrated Rear Admiral explaining subs

spawnflagger says...

so is she trying to get to a "a ha! gotcha!" moment? or what's the point of this inquiry?
someone just realized submarines are expensive?
or she is pro-nuclear submarine?
being that Australia is a giant island, makes a lot of sense for them to have a few subs.



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