General science thread

October 23rd, 2022 at 7:07:19 PM permalink
Pacomartin
Member since: Oct 24, 2012
Threads: 1068
Posts: 12569
Quote: rxwine
Researchers at Heriot-Watt University in Edinburgh have constructed an AI-powered robot trained to kill pesky cockroaches with a deadly laser.


Sounds like the opening title of a post-apocalyptic sci-fi film.

Robots being manipulated by a cat after the humans are all dead.
November 14th, 2022 at 8:34:28 PM permalink
rxwine
Member since: Oct 24, 2012
Threads: 189
Posts: 18758


World’s largest telescope array is almost ready to stare straight into the sun
China's newest telescope setup could help warn us about future solar flares and plasma eruptions. BY ANDREW PAUL | PUBLISHED NOV 14, 2022
You believe in an invisible god, and dismiss people who say they are trans? Really?
November 26th, 2022 at 6:49:02 PM permalink
rxwine
Member since: Oct 24, 2012
Threads: 189
Posts: 18758
A vaccine has been invented for Fentanyl. In short, it creates antibodies that bind to the drug. Blocks its effects. Keeps it from killing people. But also blocks the high.
You believe in an invisible god, and dismiss people who say they are trans? Really?
November 27th, 2022 at 3:27:47 AM permalink
Tanko
Member since: Aug 15, 2019
Threads: 0
Posts: 1978
Doesn't matter. China is working to destroy our economic future, by killing America's youth through chemical warfare. If a vaccine can block fentanyl, they will send ISO, or some other synthetic opioid.
November 27th, 2022 at 5:31:46 AM permalink
rxwine
Member since: Oct 24, 2012
Threads: 189
Posts: 18758
Quote: Tanko
Doesn't matter. China is working to destroy our economic future, by killing America's youth through chemical warfare. If a vaccine can block fentanyl, they will send ISO, or some other synthetic opioid.


Quote:
Teen fentanyl deaths more than doubled, from 253 in 2019 to 680 in 2020, the report showed. Last year, the number jumped to 884. And fentanyl was the cause of 77.14% of drug deaths among teenagers last year.Nov 12, 2


Quote:
A total of 2,738 teenagers ages 13-19 died in motor vehicle crashes in 2020. This is 69 percent fewer than in 1975 and 14 percent more than in 2019.p


I doubt if teen groups have changed much in years. There was always a smaller subset of a larger group of teen drug users who were more reckless and tried just about anything and more often.
You believe in an invisible god, and dismiss people who say they are trans? Really?
November 27th, 2022 at 12:32:50 PM permalink
terapined
Member since: Aug 6, 2014
Threads: 73
Posts: 11791
Quote: Tanko
Doesn't matter. China is working to destroy our economic future, by killing America's youth through chemical warfare. If a vaccine can block fentanyl, they will send ISO, or some other synthetic opioid.

Talk about doom and gloom
Just say no
Sometimes we live no particular way but our own - Grateful Dead "Eyes of the World"
January 7th, 2023 at 10:27:33 AM permalink
rxwine
Member since: Oct 24, 2012
Threads: 189
Posts: 18758
Quote:
Roman concrete, in many cases, has proven to be longer-lasting than its modern equivalent, which can deteriorate within decades. Now, scientists behind a new study say they have uncovered the mystery ingredient that allowed the Romans to make their construction material so durable and build elaborate structures in challenging places such as docks, sewers and earthquake zones.
The study team, including researchers from the United States, Italy and Switzerland, analyzed 2,000-year-old concrete samples that were taken from a city wall at the archaeological site of Privernum, in central Italy, and are similar in composition to other concrete found throughout the Roman Empire.
They found that white chunks in the concrete, referred to as lime clasts, gave the concrete the ability to heal cracks that formed over time. The white chunks previously had been overlooked as evidence of sloppy mixing or poor-quality raw material.
You believe in an invisible god, and dismiss people who say they are trans? Really?
January 7th, 2023 at 10:44:21 AM permalink
kenarman
Member since: Oct 24, 2012
Threads: 14
Posts: 4495
I wonder if the lime clasts were part of the design and the Romans knew of the advantage of having them or just an accidental benefit of poor mixing.
"but if you make yourselves sheep, the wolves will eat you." Benjamin Franklin
February 13th, 2023 at 7:54:33 AM permalink
rxwine
Member since: Oct 24, 2012
Threads: 189
Posts: 18758
Quote:
Egg whites are more complicated than they may seem and can be transformed into interconnected strands of carbon fibers and sheets of graphene, an ultra-thin compound that can ultimately be turned into graphite.

To accomplish this transformation, the researchers freeze-dried the proteins in egg whites, then heated them to 900 degrees Celsius (above 1,600 degrees Fahrenheit) in an environment without oxygen.

In a paper published in Materials Today, Arnold and his co-authors showed that the resulting material can remove both salt and microplastics from seawater — with 98% and 99% efficiency, respectively.

The resulting egg white material is inexpensive to produce, energy efficient, and highly effective. As Sehmus Ozden, one of the paper’s authors, stated: “Activated carbon is one of the cheapest materials used for water purification.


https://www.msn.com/en-us/health/other/scientists-have-invented-a-wild-way-to-remove-plastic-pollution-from-our-oceans-with-egg-whites-99-efficiency/ar-AA15ELMs?ocid=msedgntp&cvid=1e02c554caf541f08d3be8decd57fb67
You believe in an invisible god, and dismiss people who say they are trans? Really?
February 13th, 2023 at 12:06:36 PM permalink
DRich
Member since: Oct 24, 2012
Threads: 51
Posts: 4963
Quote: rxwine
https://www.msn.com/en-us/health/other/scientists-have-invented-a-wild-way-to-remove-plastic-pollution-from-our-oceans-with-egg-whites-99-efficiency/ar-AA15ELMs?ocid=msedgntp&cvid=1e02c554caf541f08d3be8decd57fb67


A cheaper way? Have they looked at the egg prices lately?
At my age a Life In Prison sentence is not much of a detrrent.