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Easy Way To Thread A Needle

Spacedog79 says...

I tried this and it does work, but results seem to vary widely depending on the type of thread being used. Some are easy, some are much harder.

David Attenborough on how to save the planet

Spacedog79 says...

Nuclear energy is the only way we can do it, we can run the planet forever and do things cleanly and more densely to leave more of our planet for wildlife.

The trouble is almost everything we hold as common wisdom about it is completely wrong, using breeder reactors have enough uranium to run the planet forever leaving almost no waste and removing the possibility of big accidents which actually aren't as harmful as commonly believed anyway.

We have thorium too, and many designs of each that can do the job. In fact we have a wealth of of options, but also a decades old and highly effective PR campaign from the fossil fuel industry to convince us otherwise.

Why Everyone is Going to Iceland Lately

Spacedog79 says...

In the wake of the financial crisis Iceland refused to listen to the bad advice of the bankers who caused the mess and locked them up instead. This let them recover their economy instead of falling deeper in to the bankers debt.

Rare Earth - The Other North Korea

Spacedog79 says...

So true. In the western world we don't see the extremism because we are so used to it, financialization, corporatism, warmongering and demonisation of the poor. They all bring benefits but understanding that they are extreme is the only way we can bring balance to our society.

Why Tesla is building city-sized batteries

Spacedog79 says...

To do this on anything like the scale we'd need would be a monumental task and you'd have to replace all of it every 10 years. Next generation nuclear is the only way we can produce enough clean and reliable power to run civilised society.

How Neutrons Changed Everything

Spacedog79 says...

Fair point. I barely consider reactors that need control rods as a legitimate design, there are much better ways to build a reactor that doesn't need to depend on such things for safety. Basic design using a molten salt core should be more than enough, and in any case none of them are anywhere near the chain reaction that would be in a nuclear bomb.

Jinx said:

So does inserting a control rod actually speed up the reaction?

How Neutrons Changed Everything

Spacedog79 says...

Good video but a bit confused about how nuclear power works, extra neutrons are not absorbed they are slowed down through moderation so they can more easily interact with other nuclei. The core mass and configuration are what stops it becoming a a bomb and this is not a knife edge thing, it is a long way off.

This Video is About Marijuana | vlogbrothers

Spacedog79 says...

I don't particularly enjoy smoking pot, but it is speeding my recovery from a long term illness no end. As soon as I don't have to I'll stop, simple as that. The law sucks.

The Virus That Kills Drug-Resistant Superbugs

Spacedog79 says...

Worth mentioning at the end that bacteria may become resistant to licin from a phage eventually, but as far as I'm aware bacteria cannot become resistant to phages themselves because the phage evolves alongside the bacteria.

Deep Look - Daddy Longlegs

Adam Ruins Everything - Real Reason Hospitals Are So Costly

The Middle East's cold war, explained

Spacedog79 says...

"... no one could have predicted"

Treating nations like pawns in a Kissinger style cold and callous power game does tend towards endless war though.

Rethinking Nuclear Power

Spacedog79 says...

A relatively good summary, but it's worth noting that Transatomic have been criticised for their sums not adding up. They may have fixed this by now, but in my opinion the best approach at the moment is Thorcon who have a design that uses no new technology of any kind and can be built right now with existing manufacturing processes. They have the people and the resources to do it too, they just need the financial and regulatory backing http://thorconpower.com/

Quantum Mechanics (Now with Added Ducks) - exurb1a

Spacedog79 says...

I'm no expert either, but my late mother was a prominent classical physicist and what I saw from her fight against QM was that its foundations were built on unjustified assumptions going all the way back to the EPR experiments. The trouble is they've built a mountain of a theory on this precarious ground when they should be sticking to what they can prove to be true and working from there.

AeroMechanical said:

I dunno about that. There's lots of scientific evidence for quantum mechanics. It was disagreement between experimental results and theory which lead to the development of quantum mechanics in the first place. There have definitely been repeatable experiments demonstrating quantum entanglement, for instance.

String Theory, now, that's where you've got your unprovable assumptions. Whereas quantum mechanics at least has a big "we don't know why this is" hole in the middle, the string theory guys would just posit the existence of a bunch more dimensions to make the equations work.

Not that I actually understand the mathematics of any of it, mind you.

Quantum Mechanics (Now with Added Ducks) - exurb1a

Spacedog79 says...

Quantum physics makes extraordinary claims and at the same time asks us to lower our standards of scientific rigour by accepting unprovable assumptions. You can have one or the other but never both.



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