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What is Water Hammer?
(5) | 05/12/2017 | Translate: Hydraulic transients (also known as water hammer) can seem innocuous in a residential setting, but these spikes in pressure can cause major damage to large pipelines and industrial pipe networks. In this video, we briefly discuss how water hammer occurs and how engineers mitigate the effect.
Hydrodynamic Levitation! On a stream of water you can levitate light balls of all sizes and even disks and cylinders. The mechanism is not the Bernoulli effect... - Inside Jurassic Park’s Most Iconic Special Effect Steven Spielberg’s 1993 film “Jurassic Park” was a landmark cinematic achievement due in large part to its groundbreaking special effects. But it wasn’t the appearance of the raptors, the brontosaurus or the T. Rex that caused Spielberg and his crew to the lose sleep. Rather, it was how to stage the iconic shot of two glasses of water rippling at the steps of the oncoming T. Rex. Meet special effect coordinator Michael Lantieri and take a look at his inspiration for that surprisingly tricky scene.
- Two New Magnetic Toys Firstly, we have an example of diamagnetic levitation. Diamagnetic materials are repelled by both the north and the south pole of a regular magnet. However the effect is a very weak one. Water is diamagnetic, and also a substance called pyrolytic graphite, which we show here. With a small2 x 2 array of powerful neodymium magnets, it is possible to levitate a small piece of pyrolytic graphite. However this is a variant of that, and it involves an array of neodymium magnets, with small pieces of pyrolytic graphite floating freely above the array. The second toy involved correlated magnets. This type of magnetism was only invented in 2008. Basically correlated magnets normally work in pairs, and have a complex arrangement of magnetic elements (maxels) on their surface; these can vary in size, orientation and location. In combination, the two magnets can be made to attract at a distance, but repel if they get too close (a combination of longer range and shorter range magnetic forces). In this example, the magnets are extremely hard to separate when they are in one orientation, but if you rotate them 180 degrees, they can be separated more easily. We will probably see a number of applications in coming years for this very new technology.
- Water Balloon FULL OF MURCURY – Popped for SCIENCE! More detailed footage of the 6lb. mercury balloon pop video showing the interesting splash from the mercury as it hits the bottom of the tub. I added some sound effects just for fun. Mercury is nearly 14 times heavier by volume than water (aka "denser") and is denser than lead.
-Don't try this at home- Mercury is dangerous at high exposure levels.
- Distracted by his phone, while placing kettle with hot water on the desk
- Don’t throw water on burning oil Darwin Award, reminder do not pour water when oil is burning, the fire must be smothered (for example with a lid or a damp cloth)
- Water clarity at Lake Paisupok in Indonesia
- A somewhat steep water slide…
- Frozen water survival lesson
- Effect of an MRI on an aluminum plate
- A clumsy cat falls into the water
- Hot water and M&MS on a plate
- Cats & water compilation
- Swim with a goliath grouper Near Port St. Lucie, Florida, Monster Mike, an avid fishing YouTuber, caught the biggest fish of his life, a Goliath Grouper. To immortalize this moment, he wanted us to take a picture of him in the water next to the huge fish. Small problem, Monster Mike can't swim...
- Top Gun Maverick with realistic sound effects