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"http://yt.cl.nr/__zB80Saglk" Where does gas and electricity come from? This short film explains how National Grid takes the energy from its source, delivering it to homes and high-streets around the country.

Tackling greenhouse gas (GHG) emissions is considered to be one of the most serious national and international challenges of our time. Australia has a sizable potential to mitigate GHG emissions and sequester carbon in agricultural production and land use systems.

"http://yt.cl.nr/aOvIQyY30so" Carbon Dioxide is shown in all of its wonderful forms: solid, liquid, and gas!

Yeast cells create easily observable carbon dioxide gas when presented to a favorable environment, and plants cell respiration can be observed with a simple leafy houseplant and some plastic wrap.  Read more: http://www.ehow.com/list_7379781_cell-respiration-experiments.html#ixzz2gNc2oRda

" 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