Nuseir YassinCEO, Nas Company · CEO at Nas Company

The Surprising Physics of the Dead Sea.

27 Aug 2026 · 3 min

Watch on YouTube

2:37

In this short, conversational video, two presenters explore the Dead Sea – the planet's lowest terrestrial point, about 440 m below sea level – and explain how the extra depth of atmosphere subtly alters everyday physics. They walk through five notable effects: (1) the higher air pressure raises water’s boiling point by roughly one degree Celsius; (2) the denser air delivers a bit more oxygen per breath, making exercise feel easier – they dub it the "lowest gym on Earth"; (3) sunlight must travel through a longer atmospheric column, which filters out a portion of UV radiation, so sunburn risk is reduced; (4) being closer to Earth’s centre makes gravity marginally stronger, adding only a few grams to a person’s weight; and (5) the deeper gravitational potential causes an infinitesimal time‑dilation effect, meaning a resident would age a few microseconds less over a lifetime. The presenters mix factual statements with light‑hearted banter, concluding that the Dead Sea’s unique physics make it worthy of wonder‑status.

Chapters

We came to the lowest point on Earth.
To show you physics. 440 meters below sea level, the physics change. This place is magical.
That is insane. This is the Dead Sea. Millions of years ago, the Earth pulled apart. This piece of land between Israel and Jordan sank.
And the Dead Sea was created. It became the lowest place in the world. So you get 440 extra meters of atmosphere between you and the sea.
And that changes physics. Number 1, water boils hotter. At the sea level, water boils at 100 degrees Celsius. Here at the Dead Sea, air pressure is 5% higher.
And that air pressure makes it harder for the water to boil. So you need 1 extra degree to boil. 101 Celsius. 99, 100, and the water is not boiling.
That is insane. Number 2, you get more salt. Every time you breathe in, more oxygen enters your lungs because of the air pressure.
And more oxygen means better, easier workouts. It's the opposite of working out on a mountain. In other words, this is the lowest gym on Earth.
Number 3, you sunburn less. Because we are so far down, sunlight has to travel through more atmosphere to reach us. That filters out UV radiation.
Yes, you sunburn less, but it's still hot and you still need sunscreen.
Number 4, gravity is stronger. We are closer to the center of Earth, so gravity is slightly stronger.
Which means everyone weighs a tiny bit more here, like 10 grams more for both of us.
Nope, I think that's just you. Number 5, time moves slower. This is the craziest one.
The deeper you go inside Earth, time moves slower. Time moves slower. So if you live by the Dead Sea, you will age slower than somebody at sea level up there.
And in your lifetime, you will get a few microseconds more of life.
Yeah, you literally live longer at the Dead Sea.
The Dead Sea should be the 8th Wonder of the World.
Because here you cook different, breathe different, sunburn different, weigh different, work out different, live longer, and Float on water.