Motorcycle Skills Test: Part 5 / “Curves”

Motorcycle Skills Test:  Part 5 / “Curves”

[music] This is the fifth and final video in our series featuring Washington State’s motorcycle skills test. In this video we’ll look at run number 5. Cornering. Riding through 2 curves. This run verifies the rider’s ability to negotiate curves. The skill needed is the ability to corner effectively. Proper entry speed is essential allowing the rider to safely corner and navigate curves. Riders are instructed: Ride through both curves…

Faster HTML and CSS: Layout Engine Internals for Web Developers

Faster HTML and CSS: Layout Engine Internals for Web Developers

>>Thanks for coming. This talk was started–we were thinking about doing some experiments and around performance in CSS and search the web with search engines found very little. There’s not a lot of research out there on this so it occurred that maybe we should go to the guy with the secret knowledge. How does this stuff really work? We’re poking at the black box but we don’t even know…

Solar Activity: How to Build a Solar Car

Solar Activity: How to Build a Solar Car

Hello! My name is Angela Wickendaul, and I work at the CEEE, and today I’m going to teach you how to build a mini solar car. The things you’ll need to do that are a pair of pliers, a small hot glue gun, and a mini solar car kit. The first thing you do is make sure that you have all of the parts you’ll need in your kit. Those…

Balloon car racers – ExpeRimental #6

Balloon car racers – ExpeRimental #6

Go! My girls and I have had a great time making and racing these cars. In a moment show you how to make a basic one. One of the things I love about these cars is they work just like a rocket. The air comes out the back and it pushes the vehicle forwards. Lots of things work like that. When a bird flaps its wings, what the bird is…

RS E05: The Aerospike Engine

RS E05: The Aerospike Engine

A problem with the converging-diverging nozzle is that it gets increasingly inefficient as the altitude increases. This is due to the underexpansion. The exhaust flows in directions it shouldn’t. One solution is the ‘aerospike engine’. This engine’s nozzle can be thought of as a converging-diverging nozzle turned inside out. The exhaust gas of an aerospike engine is exposed to the air. The air and the spike work together to control…

Kinetic Energy Can Recharge A Car’s Battery, Here’s How (360 Video)

Kinetic Energy Can Recharge A Car’s Battery, Here’s How (360 Video)

Hey guys, Trace here for DNews. San Francisco is notoriously hilly and when you’re going up and down those hills, you get potential energy and kinetic energy and it gets wasted if you don’t harvest it back from your environment which brings us to something called regenerative braking. Before we get to the science of harvesting energy from your brakes, we’re on Potrero Hill, one of 43 different hills in…

NASA’s New Space Engine Is Powered by Nuclear Fission

NASA’s New Space Engine Is Powered by Nuclear Fission

From a technology standpoint, there’s not too many greater challenges than nuclear power in space. The physics involved in it is quite intense — it has that luster of something totally different. We start with that highly enriched core, the splitting of the atoms generates that heat that we need at the right power levels, at the right temperature levels, and then we transfer that heat up to the power…