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The astrophysicist trying to travel back in time

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There are several sci-fi movies such as Back to the Future and Avengers: Endgame which showed that people do travel back in time via a portal. But in reality, most of the people believe that such things are impossible. But an astrophysicist claimed that he found a way to travel back in time. Is it really possible?

The scientist Ron Mallett has dedicated much of his life to the notion that time travel is possible and finally he came up with a scientific equation and principles which clarify that a time machine could be created.

Time travel theory

Time travel Pixabay

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Mallett, a University of Connecticut physics professor recently revealed that he has found a scientific equation that could help to build the time machine. As reported by CNN, the scientist has built a prototype device to illustrate a key component of the theory. But still, there are apprehensions whether Mallett’s time machine will ever come to reality or not.

It should be mentioned that as per science, Albert Einstein’s theory of special relativity says that time decelerates or accelerates depending on the speed at which an object is moving. Which means that if a person is travelling in a spacecraft, near the speed of light, time would pass more slowly than it would for a person on earth.

This theory also clarifies that the astronaut in the spaceship could move around in the space for less than a week and when they return to earth he will be 10 years behind the people on the planet, making it seem to the astronaut like they had time-travelled to the future. While theoretically time travelling to the future is possible, time travelling into the past is very different. However, Mallett thinks he could solve this issue by using lasers.

Time machine facts

As mentioned by CNN, the scientist stated that the creation and success of time machine revolve around Einstein’s general theory of relativity which states that gravity based on the way space can bend, or, to put it more accurately, it associates the force of gravity with the changing space-time geometry. In clear words it means that stronger the gravity is, slower the time will pass.

While explaining Mallett said, “If you can bend space, there’s a possibility of you twisting space. In Einstein’s theory, what we call space also involves time — that’s why it’s called space-time, whatever it is you do to space also happens to time.”

He claimed that it is possible to twist the time in a loop that would allow people to travel back in time. The scientist mentioned that “By studying the type of gravitational field that was produced by a ring laser,” he understood the fact that it could lead to a new way of looking at the possibility of making a time machine based on a circulating beam of light.

Criticism from other scientists

Astrophysicist Paul Sutter told CNN that Mallett’s plans will not be materialized as he believes that there are “deep flaws in his mathematics and his theory, and so a practical device seems unattainable.”

It should be noted that Mallet clarified that at this point his idea is completely theoretical and if in the future his time machine ever works, it would have limitations such as going back in time to change what had happened already in the past.

Stephen Hawking Reuters

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Stephen Hawking time travel theory

The late physicist Stephen Hawking while explaining wormholes mentioned that some of the scientists think that it may be possible to capture a wormhole and enlarge it many trillions of times to make it big enough for a human or even a spacecraft to enter and even with the help of technology such wormholes could be built in space.

While describing the time travel, he also talked about time tunnels, which are just a billion-trillion-trillionths of a centimetre across. As per Hawking, if such wormhole or time tunnel works where the “ends were in the same place and separated by time instead of distance. A ship could fly in and come out still near Earth, but in the distant past. Maybe dinosaurs would witness the ship coming in for a landing,” reported Daily Mail.

Wormhole (Representational picture) Pixaba

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The body of a Ugandan Olympic athlete who was set on fire by her partner is received by family

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NAIROBI, Kenya (AP) — The body of Ugandan Olympic athlete Rebecca Cheptegei — who died after being set on fire by her partner in Kenya — was received Friday by family and anti-femicide crusaders, ahead of her burial a day later.

Cheptegei’s family met with dozens of activists Friday who had marched to the Moi Teaching and Referral Hospital’s morgue in the western city of Eldoret while chanting anti-femicide slogans.

She is the fourth female athlete to have been killed by her partner in Kenya in yet another case of gender-based violence in recent years.

Viola Cheptoo, the founder of Tirop Angels – an organization that was formed in honor of athlete Agnes Tirop, who was stabbed to death in 2021, said stakeholders need to ensure this is the last death of an athlete due to gender-based violence.

“We are here to say that enough is enough, we are tired of burying our sisters due to GBV,” she said.

It was a somber mood at the morgue as athletes and family members viewed Cheptegei’s body which sustained 80% of burns after she was doused with gasoline by her partner Dickson Ndiema. Ndiema sustained 30% burns on his body and later succumbed.

Ndiema and Cheptegei were said to have quarreled over a piece of land that the athlete bought in Kenya, according to a report filed by the local chief.

Cheptegei competed in the women’s marathon at the Paris Olympics less than a month before the attack. She finished in 44th place.

Cheptegei’s father, Joseph, said that the body will make a brief stop at their home in the Endebess area before proceeding to Bukwo in eastern Uganda for a night vigil and burial on Saturday.

“We are in the final part of giving my daughter the last respect,” a visibly distraught Joseph said.

He told reporters last week that Ndiema was stalking and threatening Cheptegei and the family had informed police.

Kenya’s high rates of violence against women have prompted marches by ordinary citizens in towns and cities this year.

Four in 10 women or an estimated 41% of dating or married Kenyan women have experienced physical or sexual violence perpetrated by their current or most recent partner, according to the Kenya Demographic and Health Survey 2022.

The Canadian Press. All rights reserved.

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The ancient jar smashed by a 4-year-old is back on display at an Israeli museum after repair

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TEL AVIV, Israel (AP) — A rare Bronze-Era jar accidentally smashed by a 4-year-old visiting a museum was back on display Wednesday after restoration experts were able to carefully piece the artifact back together.

Last month, a family from northern Israel was visiting the museum when their youngest son tipped over the jar, which smashed into pieces.

Alex Geller, the boy’s father, said his son — the youngest of three — is exceptionally curious, and that the moment he heard the crash, “please let that not be my child” was the first thought that raced through his head.

The jar has been on display at the Hecht Museum in Haifa for 35 years. It was one of the only containers of its size and from that period still complete when it was discovered.

The Bronze Age jar is one of many artifacts exhibited out in the open, part of the Hecht Museum’s vision of letting visitors explore history without glass barriers, said Inbal Rivlin, the director of the museum, which is associated with Haifa University in northern Israel.

It was likely used to hold wine or oil, and dates back to between 2200 and 1500 B.C.

Rivlin and the museum decided to turn the moment, which captured international attention, into a teaching moment, inviting the Geller family back for a special visit and hands-on activity to illustrate the restoration process.

Rivlin added that the incident provided a welcome distraction from the ongoing war in Gaza. “Well, he’s just a kid. So I think that somehow it touches the heart of the people in Israel and around the world,“ said Rivlin.

Roee Shafir, a restoration expert at the museum, said the repairs would be fairly simple, as the pieces were from a single, complete jar. Archaeologists often face the more daunting task of sifting through piles of shards from multiple objects and trying to piece them together.

Experts used 3D technology, hi-resolution videos, and special glue to painstakingly reconstruct the large jar.

Less than two weeks after it broke, the jar went back on display at the museum. The gluing process left small hairline cracks, and a few pieces are missing, but the jar’s impressive size remains.

The only noticeable difference in the exhibit was a new sign reading “please don’t touch.”

The Canadian Press. All rights reserved.

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B.C. sets up a panel on bear deaths, will review conservation officer training

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VICTORIA – The British Columbia government is partnering with a bear welfare group to reduce the number of bears being euthanized in the province.

Nicholas Scapillati, executive director of Grizzly Bear Foundation, said Monday that it comes after months-long discussions with the province on how to protect bears, with the goal to give the animals a “better and second chance at life in the wild.”

Scapillati said what’s exciting about the project is that the government is open to working with outside experts and the public.

“So, they’ll be working through Indigenous knowledge and scientific understanding, bringing in the latest techniques and training expertise from leading experts,” he said in an interview.

B.C. government data show conservation officers destroyed 603 black bears and 23 grizzly bears in 2023, while 154 black bears were killed by officers in the first six months of this year.

Scapillati said the group will publish a report with recommendations by next spring, while an independent oversight committee will be set up to review all bear encounters with conservation officers to provide advice to the government.

Environment Minister George Heyman said in a statement that they are looking for new ways to ensure conservation officers “have the trust of the communities they serve,” and the panel will make recommendations to enhance officer training and improve policies.

Lesley Fox, with the wildlife protection group The Fur-Bearers, said they’ve been calling for such a committee for decades.

“This move demonstrates the government is listening,” said Fox. “I suspect, because of the impending election, their listening skills are potentially a little sharper than they normally are.”

Fox said the partnership came from “a place of long frustration” as provincial conservation officers kill more than 500 black bears every year on average, and the public is “no longer tolerating this kind of approach.”

“I think that the conservation officer service and the B.C. government are aware they need to change, and certainly the public has been asking for it,” said Fox.

Fox said there’s a lot of optimism about the new partnership, but, as with any government, there will likely be a lot of red tape to get through.

“I think speed is going to be important, whether or not the committee has the ability to make change and make change relatively quickly without having to study an issue to death, ” said Fox.

This report by The Canadian Press was first published Sept. 9, 2024.

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