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Videos (371) | Sift Talk (5) | Blogs (39) | Comments (505) |
Videos (371) | Sift Talk (5) | Blogs (39) | Comments (505) |
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Rocket Under Ice
Green/thicker fuse burns underwater until it's waterlogged.
I would bet; I imagine that the fish wintering under the ice had a tough moment with that shockwave.
In another note: why didn't the water put out the fuse? From simple starvation of oxygen if not actual dousing?
What Trump's Taxes Reveal About His Business Record
I don't think Trump is poor.
I think he's completely underwater and owing hundreds of millions, if not billions to Putin's cronies. He can get out of his debt if he does them a few 'favors' while he's president.
It's that or bankruptcy, so he figures, what the hell.
Moken Children See With Amazing Clarity Underwater
http://www.sciencealert.com/these-sea-nomad-children-can-see-underwater-like-dolphins
So what is the trick... and why can only children learn it?
US Navy SEALs Combat Swim
Wikipedia
"The combat side stroke is a relaxing and very efficient swim stroke that is an updated version of the traditional sidestroke. The CSS is a mix of sidestroke, freestyle and breaststroke. The combat side stroke allows the swimmer to swim more efficiently and reduce the body's profile in the water in order to be less likely to be seen during combat operations if surface swimming is required. The concept of CSS has been that it can be used with or without wearing swim fins (flippers), the only difference being that when wearing swim fins the swimmer's legs will always be kicking in the regular flutter kick motion without the scissor kick. This stroke is one of the strokes that can be used for prospective SEAL candidates in the SEAL physical screening test (PST), which includes a 500-yard swim in 12 minutes 30 seconds to determine if the candidate is suitable to go to the Basic Underwater Demolitions/SEAL school.
Basics
The combat side stroke utilizes the three main fundamentals of swimming:
Balance: There are two things that affect your balance in the water - the head and lungs. Most people when swimming, especially when using breaststroke, will swim with their head up[citation needed] which forces their hips to sink down which is like they are swimming uphill and is a sign of being less comfortable. However, if the body is flat/horizontal or more parallel to the water-line it is far more effective and will allow the swimmer to feel more comfortable in the water.
Length: The taller the person is, the faster the speed through the water. As a result, it is important that the swimmer is fully stretched horizontally in the water, as this will reduce the body's drag through the water and allow a higher speed.
Rotation: In most sports, such as baseball, when the batter swings the baseball bat they will rotate the hips to increase the power of the swing. The same principle is applied to swimming. If the swimmer engages the hips and uses the body's core muscles it will increase power."
You rather nailed it.
Clueless question; this style of swimming because it's really energy efficient? Because it makes less wake and is stealthier? Because it's harder to hit someone swimming like this in the water with gunfire?
Sorry, I'm not sure why they settled on this stroke...He says faster and more efficient---but---any engineers/biomechanics/hydrodynamics folks who tell tell me why?
Thunderf00t BUSTS the Hyperloop concept
Underwater tunnels dont need a complex solution sitting behind them to maintain that pressure.
Underwater tunnels arent open to the air, where retards can shoot at them.
Water doesnt act like air in a decompression event like what thunderf00t is talking about....it doesnt travel at the speed of sound to fill the void..
Basically, a Hyperloop tube is under the same pressure as a tube of sea-level air, 10m underwater. The difference from inside to outside is 1 atmosphere in both cases.
This is close to the underwater tunnel at the Georgia aquarium, and that's made out of plastic...
Not sure why he thinks this is so bizarre.
Thunderf00t BUSTS the Hyperloop concept
Basically, a Hyperloop tube is under the same pressure as a tube of sea-level air, 10m underwater. The difference from inside to outside is 1 atmosphere in both cases.
This is close to the underwater tunnel at the Georgia aquarium, and that's made out of plastic...
Not sure why he thinks this is so bizarre.
Newly engineered water superglue
Perhaps I misunderstood, but I thought it was simply transmitting electricity, not creating it. I was thinking it would work as a sensor where, when it's stretched passed the limit, it will no longer have continuity and could sound an alert.
If I'm wrong and it does MAKE voltage, then yes, synthetic muscles for anything really, not just prosthetics, but androids, underwater machines, etc.
Anything that can create voltage through movement should be able to create movement through voltage, unless it's a chemical process. I'm thinking of synthetic muscles for prosthetics.
The Amazing World of Coral Reefs Fluorescence
I really want to do some UV night diving. It looks amazingly like Avatar to me.
Another video about how these effects are achieved here......
*related=http://videosift.com/video/Ultraviolet-Diving-with-Underwater-Kinetics-UV-Lights
The Amazing World of Coral Reefs Fluorescence
Ultraviolet Diving with Underwater Kinetics UV Lights has been added as a related post - related requested by newtboy.
RetroAhoy: Quake
Before the match, one of the moderators said he was going to record a demo (quake engine built-in recorder), but he never followed up when I asked him how to get a copy.
The final points were memorable - I just got the pentagram of protection, then went underwater chasing after 2 guys, and discharged the lightning gun (doesn't suicide with that power-up).
Are there recordings and photo(graph)s of you winning?
Goliath Grouper Attacks Diver, Steals His Fish and Spear Gun
Angry Spear Fisherman Vs. Giant Grouper has been added as a related post - related requested by Mordhaus on that post.
cricket (Member Profile)
Your video, Angry Spear Fisherman Vs. Giant Grouper, has made it into the Top 15 New Videos listing. Congratulations on your achievement. For your contribution you have been awarded 1 Power Point.
Angry Spear Fisherman Vs. Giant Grouper
Can't stop laughing at that. So much underwater anger.
Idiot Drives Civic Into River, Rescued By Reporter
Complete brain dead idiot, or blitzed, or something else? There was definitely something wrong with that guy.
Funny to see the windshield wipers continuing to run underwater. I'm not sure they're going to do much.
Marine Iguanas feeding off Galapagos
Underwater Godzilla!