Pelican Parts Forums - Cool Science Story Of The Day [Continuing Thread]

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flatbutt

08-22-2022 07:38 AM

Too bad we have to suffer a drought to see cool stuff like this.

https://www.facebook.com/DinosaurValleyStatePark/videos/5780894828612048/

Shaun @ Tru6

08-22-2022 07:57 AM

Geneman

08-22-2022 08:40 AM

thats is great shaun. its also amazing to think that whales evolved from hippos that lost their extremities ...

flatbutt

08-26-2022 06:43 AM

The Webb scope delivers a very distant atmospheric reading:

https://www.nasa.gov/feature/goddard/2022/nasa-s-webb-detects-carbon-dioxide-in-exoplanet-atmosphere

kach22i

12-26-2022 07:29 AM

December 25, 2022
A 15-metric ton meteorite crashed in Africa. Now 2 new minerals have been found in it
https://www.cnn.com/2022/12/24/world/new-minerals-discovered-in-el-ali-meteorite-scn/index.html

Quote:

Scientists have identified two minerals never before seen on Earth in a meteorite weighing 15.2 metric tons (33,510 pounds).

The minerals came from a 70-gram (nearly 2.5-ounce) slice of the meteorite, which was discovered in Somalia in 2020 and is the ninth-largest meteorite ever found, according to a news release from the University of Alberta.

kach22i

01-07-2023 01:20 PM

Mystery of why Roman buildings have survived so long has been unraveled, scientists say
https://www.cnn.com/style/article/roman-concrete-mystery-ingredient-scn/index.html

Quote:

Their findings suggest that the lime clasts can dissolve into cracks and recrystallize after exposure to water, healing cracks created by weathering before they spread. The researchers said this self-healing potential could pave the way to producing more long-lasting, and thus more sustainable, modern concrete. Such a move would reduce concrete's carbon footprint, which accounts for up to 8% of global greenhouse gas emissions, according to the study.

For many years, researchers had thought that volcanic ash from the area of Pozzuoli, on the Bay of Naples, was what made Roman concrete so strong. This kind of ash was transported across the vast Roman empire to be used in construction, and was described as a key ingredient for concrete in accounts by architects and historians at the time.
Masic said that both components are important, but lime was overlooked in the past.

flatbutt

01-08-2023 06:51 AM

I saw this article too. The Romans certainly were capable of great things. I hope our industry adopts this finding. I wonder if I can get a similar result by adding Type S lime to Sakrete.

masraum

01-09-2023 04:53 AM

Quote:

Originally Posted by flatbutt (Post 11777437)

Too bad we have to suffer a drought to see cool stuff like this.

https://www.facebook.com/DinosaurValleyStatePark/videos/5780894828612048/

The drought that occurred this past summer exposed all sorts of interesting stuff all over the world. The drought itself sucked, but finding or seeing stuff that had been hidden for so long was a small silver lining. Similar to that are some of the things that are being found in places where snow and ice are receding to levels that haven't existed in a long time. They are finding all sorts of stuff in Scandanavia that is melting out of the ice.

masraum

01-09-2023 05:06 AM

Quote:

Originally Posted by kach22i (Post 11890957)

Mystery of why Roman buildings have survived so long has been unraveled, scientists say
https://www.cnn.com/style/article/roman-concrete-mystery-ingredient-scn/index.html

Quote:

Originally Posted by flatbutt (Post 11891328)

I saw this article too. The Romans certainly were capable of great things. I hope our industry adopts this finding. I wonder if I can get a similar result by adding Type S lime to Sakrete.

I've read over the years about how impressive the Roman concrete/cement is/was. It's pretty cool that we're still figuring it out (and surprising that it has taken so long).

GH85Carrera

01-16-2023 06:35 AM

Now this is impressive!

The waves from the record-breaking quake lasted about 10 hours — a very long time, considering no previous Marsquakes exceeded an hour.

Wow. I have felt a few earthquakes in Oklahoma but I can't imagine a 10 hour quake at 4.7 magnitude. Not massive, but long lasting. Crazy long lasting.

https://scitechdaily.com/massive-marsquake-five-times-larger-than-previous-record-holder/

“The energy released by this single Marsquake is equivalent to the cumulative energy from all other Marsquakes we’ve seen so far, and although the event was over 2000 kilometers (1200 miles) distant, the waves recorded at InSight were so large they almost saturated our seismometer,”

GH85Carrera

01-30-2023 10:12 AM

I just watched this video. I have long loved learning about just how hard it was to get men to walk on the moon.

<iframe width="560" height="315" src="https://www.youtube.com/embed/1nLHIM2IPRY" title="I Asked An Actual Apollo Engineer to Explain the Saturn 5 Rocket - Smarter Every Day 280" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" allowfullscreen></iframe>

This is just really cool, It is about just the rocket used (Saturn 5) to get them there. And the part about Apollo 12's third stage is really amazing. Sometimes it orbits earth, sometimes the sun, and in a far distant time it will smack into Earth or the moon.

IROC	03-08-2023 05:30 AM

Interesting cancer research here at my facility:

https://www.ornl.gov/news/neutrons-reveal-how-spider-lily-preys-cancer-preserves-healthy-cells

IROC	03-08-2023 06:56 AM

One more for me:

https://www.ans.org/news/article-4799/record-power-at-the-spallation-neutron-source-means-more-neutrons-for-research/

GH85Carrera

03-08-2023 08:27 AM

Quote:

Originally Posted by Shaun @ Tru6 (Post 11777459)

http://forums.pelicanparts.com/uploa...1678296404.jpg

Whales have arm, wrist & finger bones in their front fins. This is the front fin bones of a Grey whale.
All cetaceans (Whales, Dolphins, Porpoises) and Pinnipeds (Seals, Sea Lions, Walruses) have flippers. However, inside those flippers are bones that resemble a human hand, thumb included!

NY65912

03-09-2023 03:01 AM

Advances in battery technology, very interesting

<iframe width="1038" height="584" src="https://www.youtube.com/embed/Zq5FWLhlzDQ" title="The End of Lithium P3! Elon Musk Revealed ALL-NEW Shock Battery Tech, Change Entire Industry!" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" allowfullscreen></iframe>

john70t

03-09-2023 06:01 AM

https://www.yahoo.com/lifestyle/scientists-discover-electricity-thin-air-160001942.html
Scientists have discovered an enzyme that converts air into electricity, potentially unlocking a near-limitless source of clean energy.

A team from Monash University in Melbourne, Australia, found that a hydrogen-consuming enzyme from a common soil bacterium was able to generate an electrical current using the atmosphere as an energy source.

“We’ve known for some time that bacteria can use the trace hydrogen in the air as a source of energy to help them grow and survive, including in Antarctic soils, volcanic craters, and deep in the ocean,” said Professor Chris Greening from Monash University’s Biomedicine Discovery Institute.

from https://www.voat.xyz/v/science

IROC	03-23-2023 06:36 AM

I'm not directly involved in this, but I am a member of an advisory committee at J-PARC in Japan and we discuss this during our reviews because the muon target is part of the facility I review. The scale of this undertaking is impressive:

https://www.science.org/content/article/showdown-two-huge-neutrino-detectors-will-vie-probe-matter-s-origins

masraum

03-30-2023 11:14 AM

Quote:

Originally Posted by john70t (Post 11942558)

Ver cool!

300 years from now "the atmosphere is shrinking!"

masraum

03-30-2023 11:15 AM

Quote:

Originally Posted by IROC (Post 11953932)

That's really cool! I always nerd-out on this sort of stuff that is often not terribly mainstream.

masraum

03-30-2023 11:20 AM

The math nerd in me loves this.

https://www.smithsonianmag.com/smart-news/at-long-last-mathematicians-have-found-a-shape-with-a-pattern-that-never-repeats-180981899/

https://tf-cmsv2-smithsonianmag-medi...2/patch647.png

(Not the full article, only excerpts)

Quote:

After decades of searching for what mathematicians call an “einstein tile”—an elusive shape that would never repeat—researchers say they have finally identified one. The 13-sided figure is the first that can fill an infinite surface with a pattern that is always original.

Repeating patterns have translational symmetry, meaning you can shift one part of the pattern and it will overlap perfectly with another part, without being rotated or reflected. The shape described in a new paper does not have translational symmetry—each section of its tiling looks different from every part that comes before it.

David Smith, a retired printing technician and nonprofessional mathematician, was the first to come up with the shape that could be a solution to the long-standing “einstein problem.” He shared his ideas with scientists who took on the challenge of trying to mathematically prove his conjecture, per the New York Times’ Siobhan Roberts.

The team published a preprint paper detailing the findings on the site arXiv last week, and it has not been peer-reviewed yet. But experts say the work is expected to be supported with further investigation, per Science News.

“This appears to be a remarkable discovery,” Joshua Socolar, a physicist at Duke University who did not contribute to the finding, tells the Times. “The most significant aspect for me is that the tiling does not clearly fall into any of the familiar classes of structures that we understand.”

GH85Carrera

03-30-2023 11:34 AM

That is cool, but maybe a bit busy for a tile pattern for a backsplash or tile floor! ;)

masraum

03-30-2023 11:40 AM

Quote:

Originally Posted by GH85Carrera (Post 11960256)

That is cool, but maybe a bit busy for a tile pattern for a backsplash or tile floor! ;)

And it might be a pain to cut around pipes, electrical outlets, etc...

As stated in the article, intuition would tell you that finding a shape that never repeats a pattern seems very, VERY unlikely.

flatbutt

03-31-2023 04:14 AM

There is a slight similarity to T shirts so maybe cool to advertise a T shirt business.

MBAtarga

03-31-2023 08:25 AM

Quote:

Originally Posted by GH85Carrera (Post 11960256)

That is cool, but maybe a bit busy for a tile pattern for a backsplash or tile floor! ;)

Get some of that pattern printed out as wallpaper - then hire a poor soul to install that paper in your bathroom!

Ha!

masraum

03-31-2023 08:30 AM

Quote:

Originally Posted by MBAtarga (Post 11961030)

Get some of that pattern printed out as wallpaper - then hire a poor soul to install that paper in your bathroom!

Ha!

LOL

"Make sure you line up/match the seams!"

Norm K

03-31-2023 09:56 AM

Quote:

Originally Posted by masraum (Post 11960250)

The math nerd in me loves this.

https://www.smithsonianmag.com/smart-news/at-long-last-mathematicians-have-found-a-shape-with-a-pattern-that-never-repeats-180981899/

I guess they're unfamiliar with the infinite number of chimpanzees/infinite amount of time theory ...

_

masraum

03-31-2023 11:59 AM

Quote:

Originally Posted by Norm K (Post 11961124)

I guess they're unfamiliar with the infinite number of chimpanzees/infinite amount of time theory ...

_

My guess is having infinite monkeys for infinite time come up with this might be like crossing the streams. And we all know that's bad.

masraum

03-31-2023 12:04 PM

Invasive Brown Widow spiders are killing off native black widow spiders.

https://www.smithsonianmag.com/smart-news/black-widow-spiders-are-being-killed-off-by-non-native-brown-widows-180981894/

Quote:

With iconic red hourglass markings, shiny black bodies and a reputation as the deadliest spiders in North America, black widows have captured the public’s attention and imagination. But despite their infamy for being dangerous predators, new research reveals the arachnids have become prime prey for their less lethal cousins: brown widow spiders.

“Brown widows will aggressively go after black widows, chase them down,” Louis Coticchio, a biologist at the University of South Florida who led the study, tells the New York Times’ Asher Elbein. “They don’t play well with being neighbors.”

Their cousins, brown widows, originated in either Africa or South America but have managed to colonize every continent but Antarctica. They were first detected in the United States in 1935 in Florida and have since expanded across the South and parts of the West. But as the numbers of these non-native creatures increased, black widows seemed to disappear, writes Live Science’s Harry Baker. At first, entomologists thought brown widows were outcompeting the native spiders for resources, but with ample food and habitat in Florida, and with only black widows displaced, Coticchio wondered if something else was afoot.

To gain more insight into the interactions between the widow spiders, Coticchio and his colleagues placed a brown widow into a tank with either a southern black widow, a red house spider or a triangulate cobweb spider and recorded the outcome.

The results were dramatic: Brown widows were 6.6 times more likely to attack black widows than the other spiders. Young brown widows were particularly aggressive toward their cousins, killing and eating young black widows 80 percent of the time. In pairings of adults, black widows were eaten in 40 percent of the trials, while they defensively killed brown widows 30 percent of the time. The research team published the results this month in Annals of the Entomological Society of America.

“We didn’t expect to find such a dramatic and consistent difference in the personalities of the brown widow and the black widow,” co-author Deby Cassill, an ecologist at the University of South Florida, says in a statement. “Brown widows are boldly aggressive and will immediately investigate a neighbor and attack if there is no resistance from the neighbor. The black widows are extremely shy, counterattacking only to defend themselves against an aggressive spider.”

Heel n Toe

10-22-2023 08:44 PM

http://forums.pelicanparts.com/uploa...1698036158.jpg
Standing on an outcrop of volcanic rock, Joshua Chenoweth looks across the languid waters of California’s Iron Gate Reservoir and imagines the transformation in store for the landscape. In early 2024, operators will open the floodgates on the 49-meter-high dam that blocks the Klamath River, allowing the more than 50 million tons of water it impounds to begin to drain. Once it’s gone, heavy equipment will dismantle the structure. All that will remain of the 11-kilometer-long reservoir that filled the valley for 60 years will be steep-sided slopes coated in gray mud, split once again by a free-flowing river.

Within months, however, that sediment will be covered with a fine, green carpet of seedlings and colorful splashes of flowers, many planted by Chenoweth’s team. Eventually, if all goes as hoped, patches of Gary oak, desert gooseberry, and mock orange will take hold and a lush ribbon of cottonwood, willow, and ash trees will line the banks of the river. Beneath their boughs, salmon that last migrated through this valley more than a century ago will return.

More: https://www.science.org/content/article/historic-dam-removal-poses-challenge-of-restoring-both-river-and-landscape

masraum

10-23-2023 05:46 AM

Quote:

Originally Posted by Heel n Toe (Post 12115672)

Cool, reclaiming several hundred kilometers of river, and restoring the native flora. And the fact that this was also already done on the other river as well.

masraum

10-23-2023 06:00 AM

Quote:

Originally Posted by Heel n Toe (Post 12115672)

So what was the original purpose of all of these damns, power, water storage, flood management? And why is the purpose no longer needed/valid?

oldE	10-23-2023 09:02 AM

The dams were indeed constructed for the very reasons you enumerated. However there were costs (there always are) not considered. Fish passages may or may not have been designed in, but even if they were, the higher and farther a fish has to go to transit such a structure, the less likely it is to complete the trip, resulting in species loss.
As many dams, with greater or lesser utility reach their end of life, there are often compelling arguments for habitat restoration.

Best
Les

masraum

10-23-2023 09:09 AM

Quote:

Originally Posted by oldE (Post 12115967)

Right, and besides the obvious ecological issues, many times dams have more direct human impact often submerging homes and in same cases, villages. I'm sure folks in the US have had to move, but I know that I've heard of damns in foreign countries submerging villages, often multiple villages, and sometimes ancient/archeological sites.

Pazuzu

10-23-2023 07:50 PM

Quote:

Originally Posted by masraum (Post 11961219)

Invasive Brown Widow spiders are killing off native black widow spiders.

https://www.smithsonianmag.com/smart-news/black-widow-spiders-are-being-killed-off-by-non-native-brown-widows-180981894/

I missed this one. We built a sign on the street for our building. I went in there for some lighting maintenance after it was closed up for a few months, and it was flat out FILLED with brown widows. I only knew that, because they had spiky egg sacks, which I had never seen before. Black widows (and basically every other spider) have smooth egg sacks, while brown widows have spiky ones.

Also, apparently far less dangerous to humans that black widows. Maybe we'll find that browns take over the Southwest over blacks, and we are safer in our homes.

Yes, I realize that some jerk will cut and past that sentence somewhere on the interwebs to make me look racist.

Heel n Toe

10-24-2023 10:05 PM

Quote:

Originally Posted by Pazuzu (Post 12116464)

I realize that some jerk will cut and paste that sentence somewhere on the interwebs to make me look racist.

Don't worry about that. If anyone here sees it, we will attack the jerk mercilessly, telling him what a great guy you were before you became a racist.

kach22i

11-04-2023 07:51 AM

WARNING not a "cool" story, more of a nightmare so stop reading if it is late at night.

Subject: transmissible cancers (in animals only for now).

How a 6,000-Year-Old Dog Cancer Spread Around the World
A massive collection of dog tumor samples is revealing the secrets of a contagious, parasite-like cancer that could help explain human cancers too.
https://getpocket.com/explore/item/how-a-6-000-year-old-dog-cancer-spread-around-the-world?utm_source=pocket-newtab-en-us

john70t

12-17-2023 10:01 AM

A miniature seed-into-soil injection device, made from wood.
https://files.catbox.moe/rw28ji.mp4

There are probably better designs which can hold water/fertilizer/etc. depending on the soil.

jyl	12-27-2023 09:33 AM

https://www.sciencealert.com/scientists-destroy-99-of-cancer-cells-in-the-lab-using-vibrating-molecules

A class of synthetic dyes, already used to bind to and highlight cancer cells, can be made to vibrate on exposure to near infrared light. The vibration destroys the cancer cell to which the dye molecules are attached. Tested on mice with skin cancer, perhaps some potential in other cancers depending on how far near-infrared penetrates. This is the first I’ve heard of a non-surgical mechanical approach to destroying cancer cells.

kach22i

01-20-2024 03:35 AM

Quote:

Originally Posted by jyl (Post 12159337)

Wow, cool science indeed.

kach22i

01-20-2024 03:40 AM

The most "Earth-Like" planet in our solar system is not Mars, it's Venus!

Amazon Prime Documentary
Venus: Death of a Planet
https://www.amazon.com/Venus-Death-Planet-David-Brody/dp/B0B8RNB813/ref=sr_1_1?crid=W3441LUMQ1&dib=eyJ2IjoiMSJ9.RRXBB4 xCoDsxfEYdy2q3ndGzcU-79cCaCpJ-Rvq8egDFHAZSf_3S7GxUE28QLuIz7cp5_MOAUx11ASr04YTGtm SiUOM-RsAnESyABYy9ozLte99Akq5z3nYTWvgTeBkReVcpXShR5fCuhr nOpnbQ22glY_E0znzER200BIRtLxJbNz56FU_VEorNv_cx6LXP ktFfkKwFi9gQBnmjq78o6W9FiQ2JTQ7jAXldkZ3AQys.DCWewX dLJlMsMfVMv5jFjkhRtbc89MC9PRVhub2Xq1s&dib_tag=se&k eywords=venus+death+of+a+planet&qid=1705753495&s=i nstant-video&sprefix=venus%2Cinstant-video%2C123&sr=1-1

Quote:

The second planet from the sun, Venus, with its toxic overheated surface, has long been neglected by planetary mission planners. Lately, Earth's sister planet has taken center stage in one of the greatest quests in science today: the search for life-bearing worlds beyond the solar system. Scientists want to know: Why did Earth live, and why did Venus die?

Regarding the giant spot and or spots picked up as solid objects in the atmosphere via infrared imagery, found this 2021 article.

2021
Scientists puzzling out secrets of Venus' 30-year-old 'Giant Dark Cloud'
https://www.space.com/venus-giant-dark-cloud-infrared-study

Quote:

There are many strange things happening on Venus. Among them is a recognizable weather pattern that scientists now realize has persisted in the planet's atmosphere for at least 30 years.

Nicknamed the "Giant Dark Cloud," scientists first noticed that feature in data gathered by an infrared camera aboard the Japanese spacecraft Akatsuki, which has been orbiting Venus since 2015. The cloud is huge, spanning a third of the planet's latitude around its equator. After identifying the feature, scientists went looking for it in archives of similar infrared observations of the planet and found its signature across the full three decades' worth of relevant data..............

The Giant Dark Cloud feature has two aspects to it, McGouldrick noted. "Initially, this was called a 'disruption.' It was recognized as a sharp transition from light to dark that was fairly repeatable," he said. That transition unfolded over only a couple of degrees of longitude, although it stretches from the equator about 30 degrees latitude north and south. "But then there also was this massive structure behind it, almost hemisphere-size scale" — hence the name.

The whole thing also seemed to orbit differently from the rest of Venus' weather, lopping the planet once every five days, a few days more rapidly than what McGouldrick called "background clouds."..........

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