Science Squabbling

This reads like a press release about cannabis reds under the bed from the fifties

 FTFY

Anyone have a good intro to physics beyond the standard model they can point me at? Dummies guide or something.

Jon Butterworth's latest book is on the subject and as good as any other approach outside of an academic course. "A map of the invisible".

Awesome, thanks!

I enjoyed this article:

https://www.theguardian.com/science/2021/may/21/research-findings-that-are-probably-wrong-cited-far-more-than-robust-ones-study-finds

I also still enjoy the fact that the Guardian's Science Editor is called Ian Sample.

"Psychology, social science and economics journals lack rigour. Next ,bears shit in woods."

It'll never be proven.

Is it possible to build a perpetual motion machine?

This seems to get close but there is a cheat hidden in there. Watch the clip for full deets (it's less than two minutes long)

https://www.youtube.com/watch?v=oL3mmOKo95s

I'd still love to buy one. 😆

I'd love to see how the electromagnet bit works. Would be a fun project to make

It just lie parallel to the run and embedded in the base. Though I wonder if there's a switch to prevent overheating

I suppose there is some trial and error of placement, and getting the ramp curves right.

Where can I buy an electromagnet from?

Make one. Simple.

I imagine that the ball contacting the wires of the ramp completes a circuit to switch on the magnet for a very short period of time, so accelerating the ball on the downward slope, but switching off before it reaches the bottom. The extra imparted energy is enough for it to then make the jump back to the tray.

The timer is really the only complicated bit.

electromagnet from?

Insulated wire coiled around an steel nail in series with the switch and a cell...

You could easily build a tiny railgun to achieve the same thing if you disconnect the two rails from each other and apply a potential difference across them. You'd need a metal ball. A 9V battery might be enough, not sure though

No timing needed, no wasted power when the ball isn't rolling.

I think it would work anyway. Not sure about voltage/amp requirements but you only need a little bit to balance the friction/air resistance losses.

The timer is really the only complicated bit.

I think the uptick in the ramp angle just lifts it away from the other pole , so the magnet is placed so that the uptick is half way along

Oh bugger.

So much more prosaic…..

https://www.youtube.com/watch?v=trC5Dg3Vpi0

I don’t think that mechanism is in the wooden one, can’t quite see but it doesn’t look deep enough anyway.

https://www.theguardian.com/science/2023/jul/02/it-was-an-accident-the-scientists-who-have-turned-humid-air-into-renewable-power

Magnets...

https://news.nus.edu.sg/innovative-magnetic-gel-that-heals-diabetic-wounds-three-times-faster/

https://journals.plos.org/plosbiology/article?id=10.1371/journal.pbio.3002442

Interesting paper on other functions of human tears beyond letting you know you’ve just put your contact lenses in.

Good news for the portly

https://www.theguardian.com/society/article/2024/aug/05/nhs-soup-and-shake-diet-puts-almost-a-third-of-type-2-diabetes-cases-in-remission

Among this group, 32% had put their condition into remission – defined by average blood glucose levels over a period of time – with an average weight loss of 15.9kg (35lbs). Some achieved weight loss of up to 17.4kg (38lbs).

If the average loss is 35 and the max is 38 then whats the min? 32? Feels like a meaningless or incorrect set of numbers

Could be anything.

It could be one person gained 100 pounds and 45 people lost 38 pounds

The paper is here , with supplementary data here.

The most anyone gained was 38