A Florida University professor plans to spend 100 days 30 feet under the ocean’s surface, in an underwater lodge, as a scientific experiment to find out how the constant increased pressure affects his body and mind.

The current world record for time spent living underwater was set in 2014 by two Tennessee biologists who managed to live submerged for a total of 73 days, but if University of South Florida professor Joseph Dituri meets his set goal, he will beat that record by a whopping 27 days. At the beginning of this month, Dituri, who also goes by the nickname ‘Dr. Deepsea’, moved into Jules’ Undersea Lodge in Key Largo, an underwater hotel 30 feet under the surface, where he plans to remain until June 9th. During this time, he and a team of physicians and scientists plan to conduct a series of tests to see how living underwater for prolonged periods of time affects the human body and mind.

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French freediver David Helder has his own unique superpower – he can blow massive bubble rings, whirling vortices that manage to maintain their round shape for a surprisingly long time underwater. Although he appears to perform these tricks effortlessly, anyone who has ever tried freediving knows that it’s no mean feat.

“I had always seen people blowing vertical rings, I just gave it a try and all I can tell is that it’s a vortex and the air is coming out from your mouth,” said David. “It just spins in one direction creating a vortex. At the beginning, they were not good, after a couple of weeks, they were quite okay. And then I started to make some combination, trying to make some tricks.”

“Now, I’m doing some kind of figures when two rings are connecting. And I love doing those kind of rings in the sea. Laying on the surface of the sea, I just blow one ring and I can see the fishes – they are kind of eating the ring. It’s another way of interacting with the life in the water.”

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The world’s first underwater restaurant and bar, the Red Sea Star Restaurant is still one of the most amazing places on Earth.

Located in Eliat, Israel’s southernmost city, the Red Sea Star was built in 1998, in an area that had become very dirty and polluted, due to illegal human activities. Designing and planning the underwater structure lasted 4 years, during which time, a coral nursery was created, to revive the beautiful underwater life that was once present in the area. The actual building lasted another 4 years.

Submerged six meters under the Red Sea, this underwater restaurant, bar and observatory features a marine-themed interior design and a large number of windows that allow visitors to check out the underwater paradise that surrounds them. The Red Sea Star is the world’s only night-time underwater observatory, using a soft light (specific colors and wave lengths) to reveal the natural habitat, without disturbing it.

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