The how does that work (you can't explain that) thread - Ask here.

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Re: The how does that work (you can't explain that) thread - Ask here.

Post by pErvinalia » Sat Mar 21, 2020 10:54 am

Narwhal tusks. What's the point of them? You can't explain that.
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Re: The how does that work (you can't explain that) thread - Ask here.

Post by NineBerry » Sat Mar 21, 2020 3:47 pm

Narwhals were once unicorns. They fled into the ocean to be safe from humans hunting them.

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Re: The how does that work (you can't explain that) thread - Ask here.

Post by Brian Peacock » Sat Mar 21, 2020 5:02 pm

Don't be silly. Because Narwhals have flippers for limbs they use the tusk to carry their bagels home from the bakery.
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Re: The how does that work (you can't explain that) thread - Ask here.

Post by Tero » Wed Dec 23, 2020 9:10 pm

How do they heat skyscrapers? There's not a big boiler and a bunch of radiators.

All my midwest apartments had either forced air (gas) or steam radiators low to the floor. Under window room AC.

My 2 California apartments had electric radiators and no AC.
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Re: The how does that work (you can't explain that) thread - Ask here.

Post by JimC » Wed Dec 23, 2020 9:11 pm

The heat released by all those over-active brains, forever scheming how to win in office politics...
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Re: The how does that work (you can't explain that) thread - Ask here.

Post by Tero » Wed Dec 23, 2020 9:44 pm

That part is true. Public events such as concerts only require air circulation. 30 000 bodies in one place is plenty of heat.
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Re: The how does that work (you can't explain that) thread - Ask here.

Post by Cunt » Wed Dec 23, 2020 10:17 pm

Sean Hayden wrote:
Thu Aug 15, 2019 9:17 pm
I've often thought about sending remote submersibles around the world. It would probably be very challenging, and I'm sure there are legal considerations too.
A sub-tech pal told a story of a group installing surveillance equipment under the water. This apparently gives them intel from all over the ocean, including stuff that used to be secret.

The group was a Canadian Coastal university. They put listening devices in the Pacific (or that Strait) and opened it up to the internet. I bet the live feed is riveting.

When I think of the arctic divers and what they charge, I have to wonder how many sub-drones are around here. Could one run under the ice, on solar power, autonomously, and send me high-quality bathometry? Exploration companies piss away GIANT money up here...
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Re: The how does that work (you can't explain that) thread - Ask here.

Post by Brian Peacock » Thu Dec 24, 2020 1:40 am


Tero wrote:How do they heat skyscrapers?
Thermite in the girders :tea:

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Clinton Huxley » 21 Jun 2012 » 14:10:36 GMT
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Re: The how does that work (you can't explain that) thread - Ask here.

Post by Tero » Thu Dec 24, 2020 2:33 pm

Apparently heat pumps are used to some extent. It is obvious that the cooling system is in place so heat pumps could heat.
https://donnellymech.com/blog/how-hvac- ... buildings/
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Re: The how does that work (you can't explain that) thread - Ask here.

Post by Tero » Thu Dec 24, 2020 3:25 pm

They tend to be like very regular cliamates, only going to Toronto, Montreal or so. This one is up North
https://en.wikipedia.org/wiki/Lakhta_Center
daily Jan mean temperature -5C, so not very cold. Heat pump should work.
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How can you have any pudding if you don't eat your meat?
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Re: The how does that work (you can't explain that) thread - Ask here.

Post by macdoc » Sat Dec 26, 2020 5:45 pm

A team of University of Arkansas physicists has successfully developed a circuit capable of capturing graphene's thermal motion and converting it into an electrical current.

"An energy-harvesting circuit based on graphene could be incorporated into a chip to provide clean, limitless, low-voltage power for small devices or sensors," said Paul Thibado, professor of physics and lead researcher in the discovery.

The findings, published in the journal Physical Review E, are proof of a theory the physicists developed at the U of A three years ago that freestanding graphene—a single layer of carbon atoms—ripples and buckles in a way that holds promise for energy harvesting.

The idea of harvesting energy from graphene is controversial because it refutes physicist Richard Feynman's well-known assertion that the thermal motion of atoms, known as Brownian motion, cannot do work. Thibado's team found that at room temperature the thermal motion of graphene does in fact induce an alternating current (AC) in a circuit, an achievement thought to be impossible.
more
https://phys.org/news/2020-10-physicist ... PGVjxq1E4s
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Re: The how does that work (you can't explain that) thread - Ask here.

Post by Cunt » Sat Dec 26, 2020 6:24 pm

It never sounds safe to fack with Feynman...even NASA bureaucrats couldn't 'hide the ball' from that guy. Maybe now that he's dead, it will be easier to outwit him....
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I don't want to forget this enlightening quote by our prestigious and sage member...
Hermit wrote:
Wed Nov 25, 2020 11:41 am
Trump supporters are fundamentally racist.

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Re: The how does that work (you can't explain that) thread - Ask here.

Post by macdoc » Sat Dec 26, 2020 7:19 pm

He's far from infallible
blogs.scientificamerican.com › guest-blog › the-key-to-...
Nov 13, 2012 — . He now admits that climate change is caused by human activity.
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Re: The how does that work (you can't explain that) thread - Ask here.

Post by rainbow » Wed Dec 30, 2020 6:55 am

Brian Peacock wrote:
Thu Dec 24, 2020 1:40 am
Tero wrote:How do they heat skyscrapers?
Thermite in the girders :tea:
Exactly.
I believe that you can make a thermite out of aloomynumb and teflon.

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Re: The how does that work (you can't explain that) thread - Ask here.

Post by macdoc » Sat Jan 02, 2021 12:01 pm

Ontario rider staying in Cairns Australian for 3-6 months each year Feb to May Canada >• 2018 CB500x • 2008 CBF1000 Australia> 04 KLR650 • Travel photos https://500px.com/p/macdoc?view=galleries

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