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Frankrulty

18 Apr 2025 - 07:02 pm

Lunar clockwork
What scientists know for certain is that they need to get precision timekeeping instruments to the moon.
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Exactly who pays for lunar clocks, which type of clocks will go, and where they’ll be positioned are all questions that remain up in the air, Gramling said.

“We have to work all of this out,” she said. “I don’t think we know yet. I think it will be an amalgamation of several different things.”
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Atomic clocks, Gramling noted, are great for long-term stability, and crystal oscillators have an advantage for short-term stability.
“You never trust one clock,” Gramling added. “And you never trust two clocks.”

Clocks of various types could be placed inside satellites that orbit the moon or perhaps at the precise locations on the lunar surface that astronauts will one day visit.

As for price, an atomic clock worthy of space travel could cost around a few million dollars, according Gramling, with crystal oscillators coming in substantially cheaper.

But, Patla said, you get what you pay for.

“The very cheap oscillators may be off by milliseconds or even 10s of milliseconds,” he added. “And that is important because for navigation purposes — we need to have the clocks synchronized to 10s of nanoseconds.”

A network of clocks on the moon could work in concert to inform the new lunar time scale, just as atomic clocks do for UTC on Earth.

(There will not, Gramling added, be different time zones on the moon. “There have been conversations about creating different zones, with the answer: ‘No,’” she said. “But that could change in the future.”)

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18 Apr 2025 - 05:45 pm

‘A whole different mindset’
Accurate clockwork is one matter. But how future astronauts living and working on the lunar surface will experience time is a different question entirely.
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On Earth, our sense of one day is governed by the fact that the planet completes one rotation every 24 hours, giving most locations a consistent cycle of daylight and darkened nights. On the moon, however, the equator receives roughly 14 days of sunlight followed by 14 days of darkness.

“It’s just a very, very different concept” on the moon, Betts said. “And (NASA is) talking about landing astronauts in the very interesting south polar region (of the moon), where you have permanently lit and permanently shadowed areas. So, that’s a whole other set of confusion.”
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“It’ll be challenging” for those astronauts, Betts added. “It’s so different than Earth, and it’s just a whole different mindset.”

That will be true no matter what time is displayed on the astronauts’ watches.

Still, precision timekeeping matters — not just for the sake of scientifically understanding the passage of time on the moon but also for setting up all the infrastructure necessary to carry out missions.

The beauty of creating a time scale from scratch, Gramling said, is that scientists can take everything they have learned about timekeeping on Earth and apply it to a new system on the moon.

And if scientists can get it right on the moon, she added, they can get it right later down the road if NASA fulfills its goal of sending astronauts deeper into the solar system.

“We are very much looking at executing this on the moon, learning what we can learn,” Gramling said, “so that we are prepared to do the same thing on Mars or other future bodies.”

Robertthumn

18 Apr 2025 - 05:19 pm

Look of the Week: Naomi Watts is twinning with her canine co-star
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What’s white and black and red all over? Naomi Watts and her 145lb co-star, Bing, a Great Dane, taking a dog walk on the crimson carpet for the New York premiere of “The Friend.”

Directed by Scott Mcgehee and adapted from Sigrid Nunez’s 2018 novel of the same name, the film — set to release in US theaters on March 28 and in the UK on April 25 — follows a solitary writer and teacher named Iris whose life is upended after a close friend bequeaths his giant pet dog to her following his death.

In front of the cameras Monday evening, the “Mulholland Drive” actor and Bing looked like they were cut from the same cloth — both in temperament and in their matching black polka dots. Watts was dressed in a white gown with fur-tufted spots that bore a striking resemblance to Bing’s own coat, but the Cruella de Vil comparisons ended there. Instead, Watts and Bing were captured in the throes of lots of paw-shakes, puppy kisses and head scratches.
The dress that Watts wore, titled the “Domino” and designed by Jacquemus, debuted during the Spring-Summer 2025 Paris couture shows in January. The look was both elegant and offbeat, with a high-cowl neck and open-back, asymmetrical waistline that mimicked a French tuck. It was styled with a skirt that sprouted furry black polka dots, which close up were unnervingly reminiscent of body hair. But from afar they gave the impression of soft-edged dabs of watercolor bleeding downstream.

The look was styled by Jeanann Williams, who has also been working with “The White Lotus” star Leslie Bibb. Williams’ decision to coordinate Watts with Bing was a new take on method dressing — the thematic styling trend that has dominated celebrity red carpets since Greta Gerwig’s “Barbie” in 2023. Since then, the sartorial trope, which connects actors to their on-screen characters through clothes, has become somewhat tired — with some observers claiming that the 7-month-long “Wicked” press tour, in which Cynthia Erivo and Ariana Grande became prisoners to the colors green and pink, was peak saturation.

Byronploro

18 Apr 2025 - 04:51 pm

Critics say this power imbalance is clear in the 2016 contract Guyana signed with Exxon. Under the agreement, Exxon keeps 75% of everything it makes from its oil operations in Guyana, with the remaining 25% shared equally between the company and the government, which also takes a 2% royalty.
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“It was a bad deal,” Ali said in the BBC interview, but he has rejected the idea of unilaterally changing the agreement, which was signed by the previous government. He says the next contract with Exxon will be on different terms.

An Exxon spokesperson said the contract is “globally competitive for countries at a similar stage of exploration” and said Guyana is averaging $1 billion a year in “oil profits.”

Exxon has also faced a number of lawsuits over its potential environmental impact, many filed by Melinda Janki, a Guyanese international lawyer, who drafted the country’s Environmental Protection Act back in the 1990s.

A big victory for Guyana’s people and environment came in 2023, when the court ruled Exxon should have unlimited liability for the costs of any oil spill. Exxon has since appealed the ruling and has posted a $2 billion guarantee while it awaits the appeal outcome.
Exxon said this commitment supplements “its robust balance sheets … and the insurance policies they already had in place.” Janki says this isn’t enough. Offshore oil spills can be extremely expensive to deal with, the 2010 Deepwater Horizon spill cost nearly $70 billion to clean up.

The push and pull between those who say oil offers Guyana a brighter future and those who fear the industry’s impact will continue.

Exxon said it’s had a positive impact on the country, including employing more than 6,200 people, investing more than $2 billion with local Guyanese businesses since 2015 and spending more than $43 million on community projects.

Bernardnam

18 Apr 2025 - 04:41 pm

President Donald Trump wants to bring back American manufacturing in ways that would reshape the United States economy to look more like China’s. The campaign, which has led to a rapidly escalating trade war with China, has given ample social media fodder to Chinese and American observers alike.
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Announcing a series of sweeping tariffs in a move dubbed “Liberation Day,” Trump said last week that it will lead factories to move production back to American shores, boosting the U.S. economy after “foreign leaders have stolen our jobs, foreign cheaters have ransacked our factories, and foreign scavengers have torn apart our once beautiful American dream.”
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In a Truth Social post Wednesday, Trump announced that he is raising tariffs on goods imported from China to 125%, up from the 104% that took effect the same day, due to “the lack of respect that China has shown to the World’s Markets.” Higher targeted tariffs on other countries have been paused for 90 days, although the 10% baseline tariff will remain in place for all countries.
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Meme-makers and Chinese government officials have in recent days begun pointing out the irony of Trump’s tariff-driven manufacturing pivot through AI-generated satire and political cartoons that have percolated online, with many American users boosting the jokes.
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18 Apr 2025 - 04:34 pm

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