Happy thread :)

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Senate unanimously approves making daylight saving time permanent
The Senate on Tuesday approved a proposal to make daylight saving time permanent, which if passed in the House and signed by President Biden, would mean Americans would never again have to set their clocks back an hour and lose an hour of afternoon daylight in the fall and winter.

Sen. Marco Rubio (R-Fla.), the lead sponsor of the proposal, touted an array of benefits to making daylight saving time permanent — from reduced seasonal affective disorder in the late fall and early winter to more daylight for school sports.

“There’s strong science behind it that is now showing and making people aware of the harm that clock switching has, there’s an increase in heart attacks, car accidents and pedestrian accidents,” he said on the Senate floor.

“The benefits of daylight saving time has been accounted for in the research: Reduced crime as there is light later in the day, decrease in seasonal depression that many feel during standard time and the practical one,” he added.

Rubio urged the House to quickly take up the measure and pass it. He also noted that it would not take effect until next year.
“I think it is important to delay it until Nov. 20, 2023, because airlines and other transportation has built out a schedule and they asked for a few months to make the adjustment,” he said.

Sen. Sheldon Whitehouse (R.I.), the lead Democratic sponsor of the legislation, said its passage would be welcomed by people in his home state.
 

DIY-HP-LED

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I wonder if they showed this in Russia, Vlad would not approve.
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The Death Of Stalin (2017) | Steve Buscemi | Ministers of Stalin | Dark Comedy

 

DIY-HP-LED

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A Russian and an Irish wrestler were set to square off for the Olympic gold medal.
Before the match, the Irish wrestler's trainer came to him and said, "Now, don't forget all the research we've done on this Russian. He's never lost a match because of this 'pretzel' hold he has. It ties you up in knots. Whatever you do, do not let him get you in that hold! If he does, you're finished."
The Irishman nodded in acknowledgment. As the match started, the Irishman and the Russian circled each other several times, looking for an opening.
All of a sudden, the Russian lunged forward, grabbing the Irishman and wrapping him up in the dreaded pretzel hold.
A sigh of disappointment arose from the crowd and the trainer buried his face in his hands, for he knew all was lost. He couldn't watch the inevitable happen.
Suddenly, there was a long, high pitched scream, then a cheer from the crowd and the trainer raised his eyes just in time to watch the Russian go flying up in the air. His back hit the mat with a thud and the Irishman collapsed on top of him, making the pin and winning the match.
The trainer was astounded. When he finally got his wrestler alone, he asked, "How did you ever get out of that hold? No one has ever done it before!"
The wrestler answered, "Well, I was ready to give up when he got me in that hold but at the last moment, I opened my eyes and saw this pair of testicles right in front of my face. I had nothing to lose so with my last ounce of strength, I stretched out my neck and bit those buggers just as hard as I could."
The trainer exclaimed, "Oh, so that's what finished him off?!!!"
"Not really. You'd be amazed how strong you get when you bite your own balls.
 

printer

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NASA’s Webb Reaches Alignment Milestone, Optics Working Successfully
Following the completion of critical mirror alignment steps, NASA’s James Webb Space Telescope team expects that Webb’s optical performance will be able to meet or exceed the science goals the observatory was built to achieve.

On March 11, the Webb team completed the stage of alignment known as “fine phasing.” At this key stage in the commissioning of Webb’s Optical Telescope Element, every optical parameter that has been checked and tested is performing at, or above, expectations. The team also found no critical issues and no measurable contamination or blockages to Webb’s optical path. The observatory is able to successfully gather light from distant objects and deliver it to its instruments without issue.

While the purpose of this image was to focus on the bright star at the center for alignment evaluation, Webb's optics and NIRCam are so sensitive that the galaxies and stars seen in the background show up. At this stage of Webb’s mirror alignment, known as “fine phasing,” each of the primary mirror segments have been adjusted to produce one unified image of the same star using only the NIRCam instrument. This image of the star, which is called 2MASS J17554042+6551277, uses a red filter to optimize visual contrast.



Image too big for the forum? Here is the link.


 

DIY-HP-LED

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NASA’s Webb Reaches Alignment Milestone, Optics Working Successfully
Following the completion of critical mirror alignment steps, NASA’s James Webb Space Telescope team expects that Webb’s optical performance will be able to meet or exceed the science goals the observatory was built to achieve.

On March 11, the Webb team completed the stage of alignment known as “fine phasing.” At this key stage in the commissioning of Webb’s Optical Telescope Element, every optical parameter that has been checked and tested is performing at, or above, expectations. The team also found no critical issues and no measurable contamination or blockages to Webb’s optical path. The observatory is able to successfully gather light from distant objects and deliver it to its instruments without issue.

While the purpose of this image was to focus on the bright star at the center for alignment evaluation, Webb's optics and NIRCam are so sensitive that the galaxies and stars seen in the background show up. At this stage of Webb’s mirror alignment, known as “fine phasing,” each of the primary mirror segments have been adjusted to produce one unified image of the same star using only the NIRCam instrument. This image of the star, which is called 2MASS J17554042+6551277, uses a red filter to optimize visual contrast.



Image too big for the forum? Here is the link.


The test star almost looks as big as the sun, how far away is it and what's the spectral type?
 

printer

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The test star almost looks as big as the sun, how far away is it and what's the spectral type?
“All 18 mirror segments are now aligned into a single mirror,” said Lee Feinberg, Webb’s optical telescope element manager. “The images came down over the weekend, it was a very emotional moment. We can see the optical performance of the telescope is absolutely phenomenal.”

Feinberg said the image is a 2,100 second exposure, and taking an image over that length of time allows the team to assess several aspects of the telescope’s performance. Not only are the optics working perfectly, but other systems are working well too. This includes the fine guidance sensors and reaction wheels that allow the telescope to point precisely and stay on target.

“We know it’s working because we have a picture of star that looks like star,” Feinberg said. “We’re getting close to the point where we can turn this observatory over to the scientific community.”

The star 2MASS J17554042+6551277, is a “generic, anonymous, average star” chosen for its brightness – or lack thereof.

“We plucked this star out of obscurity,” Rigby mused, “It is 100 times fainter than what the human eye can see, but here it looks blindingly bright.”


Posted on March 16, 2022 by Nancy Atkinson

Webb has Now Taken the Sharpest Image the Laws of Physics Allow
 
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DIY-HP-LED

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A 140-Years-Old Battery Technology Might Change Everything We Know About Energy Storage

Li-Ion batteries power everything today, from tiny gadgets to cars and even airplanes. But for all the benefits that Li-Ion batteries bring to the table, there are tons of problems. These range from the costly and difficult to source materials to safety problems and the damage they cause to the environment. Scientists think they found an alternative that could change everything we know about batteries.
 
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