PLCscience

"http://yt.cl.nr/VSwfqaVeCWs" 850 people in New Orleans were knocked back onto mattresses in human dominoes to break the world record for the number of people taking part.

An army of 1,001 volunteers set a new Guinness world record when they successfully created the largest ever human mattress domino rally. 

How fast electrons move in a closed circuit?Please compare it with the speed of light.?

How fast does electricity flow?

Impossible objects, like those drawn by artist M. C. Escher, don't seem like they could exist in the real world. But Kokichi Sugihara from Meiji University in Kawasaki, Japan, is well known for building 3D versions of these structures.

Create quizzes and collect instant visual feedback.

A two-song medley: "Microbes, They Might Kill You" and "We Are the Microbes" is a parody of Queen's "We Will Rock You" and "We Are the Champions," as performed by Carl Winter.

"http://yt.cl.nr/QcwtF4RkHe8" What started as a master's thesis project has blown up -- literally -- into an entirely new kind of bike helmet. You might not see it because it works more like an airbag. 

"http://yt.cl.nr/xAQIvJ_QoIs" From within the depths of matter a tiny speck with an extraordinary structure and glorious equilibrium emerges: the atom. This tiny speck is the building block of everything in the universe, from giant stars to the proteins inside the cell. Everything in the universe, without exception, is made up of atoms. 

"http://yt.cl.nr/xH8mT2IQz7Y" It's a video about sound. A science song about sound. Also there's a bit about the five senses.

Armsign have vast experience in the design and manufacture of botanical signs and labels. Using materials that sit naturally in their surroundings we create wonderful informational, educational and directional signage or displays.

" Dim Lights Share a clea.nr URL: Hide Comments, Favorites, Suggested Videos, etc. There is a common perception that weight and mass are basically the same thing. This video aims to tease out the difference between mass and weight by asking people what makes a car difficult to push. The standard answer is that it is difficult to push because it's heavy. But heaviness is a measure of weight, the gravitational pull of the Earth attracting the car to Earth's center. When the car is pushed on a flat road, the force of gravity does not oppose the motion. Instead the resistance felt is an indication of the car's mass which determines its inertia. Inertia is the property of matter that means it tends to resist acceleration - the greater the mass, the less the acceleration for a given amount of force. Subscribe 109 videos 32,519 Like Add to Share Uploaded by 1veritasium on Feb 7, 2011 There is a common perception that weight and mass are basically the same thing. This video aims to tease out the difference between mass and weight by asking people what makes a car difficult to push. The standard answer is that it is difficult to push because it's heavy. But heaviness is a measure of weight, the gravitational pull of the Earth attracting the car to Earth's center. When the car is pushed on a flat road, the force of gravity does not oppose the motion. Instead the resistance felt is an indication of the car's mass which determines its inertia. Inertia is the property of matter that means it tends to resist acceleration - the greater the mass, the less the acceleration for a given amount of force. 320 likes, 14 dislikes Show more Uploader Comments ( 1veritasium ) Actually, it is the friction which is causing difficulty in moving the car. Ideally if there is no friction, whether rolling or sliding, even the slightest of the force would make the car move. You could actually be able to move the car with a push of your little finger if there is no friction at

"http://yt.cl.nr/mezkHBPLZ4A"

"http://yt.cl.nr/_mCC-68LyZM" If you drop a heavy object and a light object simultaneously, which one will reach the ground first? A lot of people will say the heavy object, but what about those who know both will land at the same time? What do they think? Some believe both objects have the same gravitational pull on them and/or both fall to the ground with the same constant speed. Neither of these things is true, however. The force is greater on the heavy object and both objects accelerate at the same rate as they approach the earth, i.e. they both speed up but at the same rate.

"http://yt.cl.nr/OZY8279b7BU" At 15,000 metres Prof Brian Cox experiences what a world without gravity would be like.

"http://yt.cl.nr/iQOHRKKNNLQ" In this segment I ask why astronauts in the space station are weightless. The most common answer is because there is no gravity in space. But of course there is gravity in space, especially where the space station is located (only about 400km from Earth's surface). So astronauts still experience a gravitational pull - it's just that they and the space station are in free fall so they are accelerating together towards the Earth. The space station doesn't crash into the Earth because of its orbital velocity - it's going 28,000 km/h so as it falls, the Earth curves away from it.

"http://yt.cl.nr/rQbc1HJc5Nw" Weightless in ISS

"http://yt.cl.nr/Jk5E-CrE1zg"