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The Science Thread

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SirRumpole said:
The shocking toll of leaded fuels.

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What a find.:) I enjoy/appreciate
AFz5-ImMQmmgObvzWBCL7-mA=s48-c-k-c0x00ffffff-no-rj.jpg
Veritasium 11.7M subscribe

very much. This however was one of the truly elite pieces of research and presentation.
The story of how leaded petrol was developed and went on to poison hundreds of millions of people and damage our ecosystem is horrific.

There was no accident here. From day one the inventor and the company realised how dangerous the product was. It was killing their workers for a start as well as poisoning the inventor. The painstaking research to identify the effects of this lead on health, mortality and mental illness is excellent. If you go to the You Tube link all the research and collaborators are identified.

Also well worth checking out the WREN organisation that sponsored this video. It has some great projects.

Nice find Rumpy
 
basilio said:
What a find.:) I enjoy/appreciate
View attachment 140809 Veritasium 11.7M subscribe

very much. This however was one of the truly elite pieces of research and presentation.
The story of how leaded petrol was developed and went on to poison hundreds of millions of people and damage our ecosystem is horrific.

There was no accident here. From day one the inventor and the company realised how dangerous the product was. It was killing their workers for a start as well as poisoning the inventor. The painstaking research to identify the effects of this lead on health, mortality and mental illness is excellent. If you go to the You Tube link all the research and collaborators are identified.

Also well worth checking out the WREN organisation that sponsored this video. It has some great projects.

Nice find Rumpy
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Thanks bas. Reply to Veritassium's YouTube channel and get notifications of his new videos.
 
SirRumpole said:
The shocking toll of leaded fuels.

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Super interesting, especially with regards to general intellect. For a helluva a long time I have noticed humans IMO used to have greater linguistic skills than at least over my own lifetime and have always wondered why.

This could explain that.
 
wayneL said:
Super interesting, especially with regards to general intellect. For a helluva a long time I have noticed humans IMO used to have greater linguistic skills than at least over my own lifetime and have always wondered why.

This could explain that.
Click to expand...
I thought it was texting that has caused the loss of the ability to speak in sentences :(
 
At last. A practical use for 3 D printers. Lets 3D print a rocket that will take people to outer space and even Mars !!


 
basilio said:
At last. A practical use for 3 D printers. Lets 3D print a rocket that will take people to outer space and even Mars !!


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Nott as high tech as rocket ships, but we've found a practical use for 3d printers, for remedial work in our field.... Very useful in fact.
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basilio said:
At last. A practical use for 3 D printers. Lets 3D print a rocket that will take people to outer space and even Mars !!


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My comment was very tongue in check. Yes we know that 3D printing has now become very effective at producing a wide range of products. The critical difference with this company and it's rapid production of entire rockets is the 10/100 fold improvement in the size and complexity of their 3D printing.

For example they are producing intricate rocket engines which normally have thousands of individual tubes each spot welded to a precise spot in one piece. These units are structurally stronger than any current unit and 10-100 times cheaper to construct.

This video is one for the engineers and industrial designers on ASF. The company and its skills are well worth noting.

From what I have seen I think this company will be making a profound impact on teh stock market as well as engineering almost everything. Great IT skills. Great mechanical capacity.:2twocents
 
Another superb presentation from Veratitisum. He does an outstanding job of explaining critical science facts and discoveries in very accessible ways. This one on the importance of nitrogen and how the Haber process revolutionized agriculture is up there with his best work.

 
If you take the trouble to check out the Nitrogen story make sure you finish watching the video. The last few minutes offer an insight into an organisation supporting creative ways to draw down CO2 from the atmosphere to mitigate human caused global heating. WREN supported this video and in return Veritasim critiqued and supported them

www.wren.co

Our Projects | Wren

Meet the projects that Wren members support to remove CO2 from the atmosphere.
www.wren.co www.wren.co
 
Scientists are puzzled as to just why the earth has started spinning faster.
From the mind Unleashed
The Earth recently completed a rotation faster than ever before at 1.59 millisecond under 24 hours, and the consequences for how we keep time have experts around the world alarmed.

It could be the first time in world history that global clocks will have to be sped up.

“This would be required to keep civil time—which is based on the super-steady beat of atomic clocks—in step with solar time, which is based on the movement of the Sun across the sky,” Time and Date reported.

Scientists don’t know what is causing our planet to spin faster than ever before, but some experts fear it could be “devastating,” while others speculate the shorter days could be related to climate change, of course.
Since the Earth’s rotation has always largely been slowing down throughout time, atomic clocks have thus far only added positive leap seconds to keep up. 27 leap seconds have been needed to keep atomic time accurate since the 1970s.

However, it just emerged that on June 29, the Earth recorded its shortest day since scientists began using atomic clocks to measure its rotation, in what was only the latest of speed records set for our planet since 2020. It even came close again more recently on July 26, having completed a rotation in 1.5 milliseconds under 24 hours.
A negative leap second would mean that our clocks skip one second, which could potentially create problems for IT systems,” the Time and Date website warned.

Meanwhile, Meta warned in a blog post last month that adding a negative leap second could have consequences for smartphones, computers and communications systems.

Citing Meta’s blog, the Independent reported that the leap second would “mainly benefits scientists and astronomers” but that it is a “risky practice that does more harm than good.”


Meta also warned that by adding a negative leap second, clocks will change from 23:59:58 to 00:00:00, and that this could have an unintended “devastating effect” on software relying on timers and schedulers.

“The impact of a negative leap second has never been tested on a large scale; it could have a devastating effect on the software relying on timers or schedulers,” Meta said.
This is due in part to the fact that time moving forward is seen as a constant in most technological systems.


If the internal clocks of these IT systems ever have to be adjusted backwards to account for an abnormally fast rotation of the Earth, widespread disruptions and massive outages are to be expected.

Time and Date suggests that the diminishing length of the shortest days may be related to Earth’s “inner or outer layers, oceans, tides, or even temperature,” although experts aren’t sure.

Leonid Zotov, Christian Bizouard, and Nikolay Sidorenkov will argue at the upcoming annual meeting of the Asia Oceania Geosciences Society this week that the Earth’s rotation speeding up may be related to the ‘Chandler wobble,’ the term given to the small and irregular movement of the geographical poles across the surface of the globe.
Experts say the ‘Chandler Wobble’ – a change in the spin of the Earth on its axis – may be to blame.
“The normal amplitude of the Chandler wobble is about three to four meters at Earth’s surface,” Zotov told Time and Date, adding: “But from 2017 to 2020 it disappeared.”

The International Earth Rotation Service in Paris, which tracks the planet’s rotation, will notify governments six months in advance if and when leap seconds must be added or removed.
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And heres me thinking that the fact that time seemed to fly these days was just because I am getting old(er).
It was kinda predictable that climate change would get a place in the pantheon of possible causes.
It was also predictable that the headline says the fastest day ever, despite the fact we have only been able to measure at such time frames for the past 250 years. It could pale into insignificance compared to some of the dooseys that have built up the past before atomic clocks came on the scene.
Mick
 

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