DEEPEST Hole in the World!!!!! 30 sec freefall SCARY!!!

30+ second drop. Do the math. Located near Dugway Proving Grounds ("Area 52") in Western Utah. They test a lot of top secret stuff underground out there. Banging sound is caused by the rock bouncing off the sides of the hole as it drops. This hole is a few miles away from Dugway's UAV blimp base; the blimp is visible just down the valley from the hole. We dropped a lit bottle rocket in upside down, and we could observe the flash from the report several hundred feet down, so we know it straight for at least that far. What should we drop down next? UPDATE: On June 15, 2012, we lowered a rock on fishing line down the hole. We lowered it more than 3,000 feet down, and had not yet reached the bottom. UPDATE: Our first attempt to lower a camera down failed. The camera broke on the way down (rust from the walls got inside the camera and it stopped working). UPDATE: We purchased a mini low light video camera to drop down the hole. As soon as we get a good weather window, we will find out what is at the bottom! UPDATE: We have video of the bottom of the hole (at least we think it might be the bottom) here: http://www.youtube.com/watch?v=fT4o5Tn84Qo

Comments

Malhar Nityanand: It's a bit shorter than 30sec....coz the sound takes time to reach us

ZeeC: still not deep enough to fit my dk ..

Commander Palace: Not the deepest hole in the world

Elsie Lamb: Sounds like bowling pins getting knocked over

Zenix Kirin: The bottomless pit in real life

Zenix Kirin: Drops phone

Thomas McCarter: Deepest hole my ass. The deepest is over 12km and its in Russia

Vitor Miranda: This it not the deepest hole in the world

Swiatlocien: I was listening to "Bottomless Pit" by Death Grips and this was in recommended videos. Nice one, YouTube!

DogeGamer1467: That not the deepest hole you idiot

Conjo: I timed it, and it actually fell for 32 seconds, give or take. Assuming it was in complete freefall, the rock would have accelerated to a speed of 313.6 m/s by the time it reached the bottom. Since this is so close to the speed of sound (343 m/s), then this is impossible. So we have to take into account the terminal velocity of the rock. Assuming it has a mass of around 3.9 kilograms, judged by calculating the volume of a hemisphere with a radius of 9 cm (which is around half the average size of a human hand), it would reach a terminal velocity of 116.7 m/s about 11.9 seconds in. We can estimate how far it goes in this time by multiplying 9.8 (earth's gravitational acceleration) by the number of seconds passed, for every second (9.8 + (9.8 * 2) + (9.8 * 3)...) until 11.9. Using this (very time-consuming) method, we can safely say that it falls 763.5m after the first 12 seconds. After that, its as simple as multiplying 116.7 m/s by 20 sec, which gives us 2335.32m. Add this together with what we got with the first 12 seconds and we have a 3.09km deep hole!

the idiot gamer: Well that's what she said

Jerzy Dziś: Girl, you got a great future behind you

Easy Clips: not the deepest. fake news

DAVID LOPAN: Drop a hand grenade or an m80 💣🎆

Tomo Roly: Sounds like the middle of syria

Vox TV: The hole is approximately 5 km deep or 16000 feet

Tony Vitelli: It's probably deeper but people always drop stuff in their so it stacks up

Whats It To You: Wow this video was posted before Cars 2 on blueray and DVD came out!

Clorox Bleach: looks like an asshole

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