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New Hampshire Governor Saves Man's Live while Choking at Seafood Festival

 New Hampshire Gov. Chris Sununu came to the aid of a contestant choking on a lobster roll during a contest - The AP.
 New Hampshire Gov. Chris Sununu came to the aid of a contestant choking on a lobster roll during a contest - The AP.
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New Hampshire Governor Saves Man's Live while Choking at Seafood Festival

 New Hampshire Gov. Chris Sununu came to the aid of a contestant choking on a lobster roll during a contest - The AP.
 New Hampshire Gov. Chris Sununu came to the aid of a contestant choking on a lobster roll during a contest - The AP.

New Hampshire Gov. Chris Sununu came to the aid of a contestant choking on a lobster roll at a seafood festival eating contest, using the Heimlich maneuver after the man signaled for help.

The contestant, Christian Moreno, recovered and resumed eating at the competition on stage Sunday.

Moreno was one of six participants at the Hampton Beach Seafood Festival contest. They had 10 minutes to eat as many lobster rolls as they could. The New England sandwich is traditionally stuffed with lobster, celery and mayonnaise and served on a hot dog-style bun.

“I'm shooting for at least 20,” Moreno, of Nashua, said in a video account before the contest started, saying he studied competitive eater Joey Chestnut of hot dog-contest eating fame, The AP reported.

Moreno was at the end of a long table, close to where Sununu was watching on the side of the stage after speaking to the crowd a bit earlier.

Standing, Moreno had downed about two lobster rolls when he started choking and tapped his chest, video showed. Sununu rushed out a short time later, put his arms around Moreno and started abdominal thrusts. He got in several before first responders took over, WMUR-TV reported.

Messages seeking comment Monday were sent to Sununu's office and to Moreno.

“It was crazy because it wasn’t so much the jumping in and doing it — I mean, that was wild in itself — but there was so much commotion,” Sununu, a popular Republican governor who isn't seeking reelection for fifth term, told the station.

Moreno, who didn't have his glasses on, wasn't aware it was the governor who had helped save him.

"My counter came up to me and, like, made a joke. And was like, ‘Oh, like, I bet nobody else can say that they’ve gotten the Heimlich from the governor before.’ And I looked at him, was just like, that was, that was the governor?” Moreno said.

Moreno recovered and went back to the contest. He didn't win, but he did consume nine lobster rolls in all.

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What is Helium and Why is it Used in Rockets?

India's Geosynchronous Satellite Launch Vehicle Mk III-M1 blasts off carrying Chandrayaan-2, from the Satish Dhawan Space Centre at Sriharikota, India, July 22, 2019. REUTERS/P. Ravikumar/File Photo Purchase Licensing Rights
India's Geosynchronous Satellite Launch Vehicle Mk III-M1 blasts off carrying Chandrayaan-2, from the Satish Dhawan Space Centre at Sriharikota, India, July 22, 2019. REUTERS/P. Ravikumar/File Photo Purchase Licensing Rights
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What is Helium and Why is it Used in Rockets?

India's Geosynchronous Satellite Launch Vehicle Mk III-M1 blasts off carrying Chandrayaan-2, from the Satish Dhawan Space Centre at Sriharikota, India, July 22, 2019. REUTERS/P. Ravikumar/File Photo Purchase Licensing Rights
India's Geosynchronous Satellite Launch Vehicle Mk III-M1 blasts off carrying Chandrayaan-2, from the Satish Dhawan Space Centre at Sriharikota, India, July 22, 2019. REUTERS/P. Ravikumar/File Photo Purchase Licensing Rights

Two NASA astronauts aboard Boeing's (BA.N) Starliner will stay on the International Space Station for months, because of a faulty propulsion system whose problems included helium leaks. Back on Earth, SpaceX's Polaris Dawn mission has been delayed because of helium issues on ground equipment.

Boeing's Starliner spacecraft landed uncrewed in a New Mexico desert late on Friday.

Past missions have that have been affected by pesky helium leaks include ISRO's Chandrayaan 2 and ESA's Ariane 5. Why do spacecraft and rockets use helium, and what is so tricky about it?

WHY HELIUM?

Helium is inert - it does not react with other substances or combust - and its atomic number is 2, making it the second lightest element after hydrogen.

Rockets need to achieve specific speeds and altitude to reach and maintain orbit. A heavier rocket requires more energy, not only increasing fuel consumption but also needing more powerful engines, which are more expensive to develop, test, and maintain.

Helium also has a very low boiling point (-268.9°C or -452°F), allowing it to remain a gas even in super-cold environments, an important feature because many rocket fuels are stored in that temperature range.

The gas is non-toxic, but cannot be breathed on its own, because it displaces the oxygen humans need for respiration.

HOW IS IT USED?

Helium is used to pressurize fuel tanks, ensuring fuel flows to the rocket's engines without interruption; and for cooling systems.

As fuel and oxidiser are burned in the rocket's engines, helium fills the resulting empty space in the tanks, maintaining the overall pressure inside.

Because it is non-reactive, it can safely mingle with the tanks' residual contents.

IS IT PRONE TO LEAKS?

Helium’s small atomic size and low molecular weight mean its atoms can escape through small gaps or seals in storage tanks and fuel systems.

But because there is very little helium in the Earth's atmosphere, leaks can be easily detected - making the gas important for spotting potential faults in a rocket or spacecraft's fuel systems.

In May, hours before Boeing's Starliner spacecraft made an initial attempt to launch its first astronaut crew, tiny sensors inside the spacecraft detected a small helium leak on one of Starliner's thrusters that NASA spent several days analysing before deeming it low-risk, according to Reuters.

Additional leaks were detected in space after Starliner launched in June, contributing to NASA's decision to bring Starliner back to Earth without its crew.

The frequency of helium leaks across space-related systems, some engineers say, have highlighted an industry-wide need for innovation in valve design and more precise valve-tightening mechanisms.

ARE THERE ALTERNATIVES?

Some rocket launches have experimented with gases such as argon and nitrogen, which are also inert and can sometimes be cheaper. Helium, however, is much more prevalent in the industry.

Europe's new Ariane 6 rocket ditched the helium of its predecessor Ariane 5 for a novel pressurization system that converts a small portion of its primary liquid oxygen and hydrogen propellants to gas, which then pressurizes those fluids for the rocket engine.

That system failed in space during the final phase of Ariane 6's otherwise successful debut launch in July, adding to the global rocket industry's long list of pressurization challenges.