Going green Podcast #23 | What is meant by Carbon Neutral?

What is meant by Carbon Neutral and how can we get there is a common question. Philip and Paul discuss how they can get to carbon neutral or better. My company buys in Power. Much of this is made via solar panels, but at night we need to get the power from the grid, which is up to 50% renewably generated. Our hot water is supplied during the summer by solar thermal, but in the winter not enough heat is generated so we need to buy in green house unfriendly methane gas. We need water and this also has a greenhouse content to it. Our vehicles are not electric but we don't use them much for the company only going out a short distance every few weeks. To offset these emissions we need to buy some carbon credit in some form by planting some new tree of finding some other form of carbon sequestration. #climateemergency #cop26glasgow #climatecrisis #environment #globalwarming #climatechangeisreal #carbonneutrality

Immutable theory of light

 Looking at light passing through one prism then taking just one of those colours and trying to split that light again in another prism. It doesn't get split any more. Red light stays as red light.

Heating effect of electricity

 #Physics Teaching about electrical circuits and resistance and heating. Setting iron wool on fire with only a few volts. The students wondered why I wouldn't hold the wool in my hands until they saw this. #iteachphysics #Science #STEM

Parallelogram of Forces

 Teaching #Physics online looking at the parallelogram of forces using a force board. Even though the students are back at school many are still forced to isolate or have Covid and then I need to teach them online. #iteachphysics #Science #STEM

Centre of Mass

 #Physics Using and inclined plane, a phone inclinometer and some masses with foam to raise the mass higher with adding any mass lower down to look at the effect of centre of mass, angle and the tipping point. Fun Experiment #iteachphysics #Science #STEM With the mass higher up the object falls over at a lower angle. With a shorter piece of foam the centre of mass is lower and the angle is much higher before the object falls.

Nylon Rope Track

 Some fun #Alevel #Chemistry carrying out the nylon rope trick. Seeing the faces on the students as the nylon is pulled from where the two surfaces touch and drawn out into a string. #Science #STEM #iteachchemistry

Inclined Plane

 #ALevel #Physics Theory and Practice looking to the inclined plane. Learning about Mg sin Ɵ and mg Cos Ɵ.

Seeing the equations, working them out and then finding the real world values are the same. #iteachphysics #STEM #Science