overview for raker

50

TIL that the U.S. Department of Energy accidentally invented an orbit cannon in 1957 (en.wikipedia.org)

submitted 1 month ago by raker@lemmy.world to c/til@lemmy.world

3 comments fedilink

During the Pascal-B nuclear test of August 1957 a 900-kilogram (2,000 lb) steel lid was welded over the borehole to contain the nuclear blast, despite Brownlee predicting that it would not work. When Pascal-B was detonated, the blast went straight up the test shaft, launching the cap into the atmosphere. The plate was never found. Scientists believe compression heating caused the cap to vaporize as it sped through the atmosphere. A high-speed camera, which took one frame per millisecond, was focused on the borehole because studying the velocity of the plate was deemed scientifically interesting. After the detonation, the plate appeared in only one frame. Regarding its speed Brownlee reckoned that "a lower limit could be calculated by considering the time between frames (and I don't remember what that was)", and joked that the best estimate was it was "going like a bat!". Brownlee estimated that the explosion, combined with the specific design of the shaft, could accelerate the plate to approximately six times Earth's escape velocity (approximately 240,000 km/h or 150,000 mph).

135

TIL that the U.S. Department of Energy accidentally invented an orbit cannon in 1957 (en.wikipedia.org)

submitted 1 month ago by raker@lemmy.world to c/til@lemmy.world

5 comments fedilink

During the Pascal-B nuclear test of August 1957 a 900-kilogram (2,000 lb) steel lid was welded over the borehole to contain the nuclear blast, despite Brownlee predicting that it would not work. When Pascal-B was detonated, the blast went straight up the test shaft, launching the cap into the atmosphere. The plate was never found. Scientists believe compression heating caused the cap to vaporize as it sped through the atmosphere. A high-speed camera, which took one frame per millisecond, was focused on the borehole because studying the velocity of the plate was deemed scientifically interesting. After the detonation, the plate appeared in only one frame. Regarding its speed Brownlee reckoned that "a lower limit could be calculated by considering the time between frames (and I don't remember what that was)", and joked that the best estimate was it was "going like a bat!". Brownlee estimated that the explosion, combined with the specific design of the shaft, could accelerate the plate to approximately six times Earth's escape velocity (approximately 240,000 km/h or 150,000 mph).

75

Mutilated multiverse of madness (lemmy.world)

submitted 2 months ago by raker@lemmy.world to c/lemmyshitpost@lemmy.world

4 comments fedilink

img is ai-gen

GOG’s Freedom To Buy Campaign Gives Away Controversial Games For Free To Protest Censorship in c/games@lemmy.world

[–] raker@lemmy.world 4 points 3 months ago (1 children)

Fuck Google and its fcking recaptcha with its fcking traffic lights, fcking crosswalks, fcking hydrants, fcking bicycles and fcking CARS! FCK!

The Steam controller was ahead of its time in c/games@lemmy.world

[–] raker@lemmy.world 5 points 4 months ago

Can confirm. Mine is about 22 years old. Unfortunately the USB adapter isn't working anymore.

Majority of AI Researchers Say Tech Industry Is Pouring Billions Into a Dead End in c/technology@lemmy.world

[–] raker@lemmy.world 3 points 8 months ago

Better to just shut it out as you described and use the time to think about that issue you’re having on a personal project or what toy to buy for your cat’s birthday.

Exactly. Do the daily corpo dance and cheer if they babbling about innovation, progress, growth and new products. Do not fight against it. Just take your money and put your valuable time and energy elsewhere.

Warning: Elon Musk now has Huffman bending the knee. Whitepeopletwitter, iselondeadyet and loads of other Elon critical subs have been banned or suspended. in c/reddit@lemmy.world

[–] raker@lemmy.world 2 points 9 months ago

It just emphasizes what's already there.

The U.S. just pledged hundreds of billions to protect its AI leadership. A Chinese startup with a ‘joke of a budget‘ may have already undercut those hopes in c/technology@lemmy.world

[–] raker@lemmy.world 2 points 10 months ago

The model itself is probably not censored. The censorship comes on top. Preliminary tests already show how this can be circumvented.

Microsoft 365 sees 43% price hike thanks to Copilot — existing customers safe until renewal in c/technology@lemmy.world

[–] raker@lemmy.world 2 points 10 months ago

Last week at us.

First question I asked the evil twin was: "How can I deactivate Gemini and never hear from it again?" Support article poped up, where must opt out from some Labs setting or some bs, but only a workspace admin can do it.

Ended up with blocking that flare button with uBo. Problem solved.

Anon's PC works in c/greentext@sh.itjust.works

[–] raker@lemmy.world 2 points 10 months ago (1 children)

Almost exact same timeline, prices and specs here. Just went with the RX6600 instead after hardware became somewhat affordable again after crypto hype and COVID. Always bought the mid-lowend stuff of the then actual hardware, if upgraded wanted/needed. It's good to read of non-highend stuff all the time though.

Anon's PC works in c/greentext@sh.itjust.works

[–] raker@lemmy.world 4 points 10 months ago* (last edited 10 months ago) (1 children)

NVMe

This part was huge you for me. Almost same as from HDD to SSD.

Anon's PC works in c/greentext@sh.itjust.works

[–] raker@lemmy.world 7 points 10 months ago

If you want to stay with Windows for whatever reason, even 11, I can recommend Revision Playbook. It locks your installation and scrapes out the crap like unwanted updates and features like AI bullshit, Edge, Telemetry and whatnot. You can even manually install Apps from the Store without the Store if you like to. Security patches and selective updates come only via manual download from MS catalogue in my case, but you can automate this too with some tools.

Anon's PC works in c/greentext@sh.itjust.works

[–] raker@lemmy.world 4 points 10 months ago (1 children)

This. My mobile is over 6 years old. Security updates till 2022, but I don't even mind sec updates. What concerns me more is buy-a-new-phone-every-year-because-reasons, because buy new shit and spybloatware. Skynet is the virus. My old one runs perfectly fine and I buy a new one if it is broken. Even critical apps like banking doing fine. It's not like the whole architecture of the OS changes yearly, right?