Wilmshurst Machine

#GCSE #Physics Getting the Wilmshurst machine out to do its party piece this week. It can do all the experiments the Van der Graff generator does, and student powered. #iteachphysics #STEM #Science

Podcast Reducing Emissions

 

Scientists are calling for emissions in Carbon Dioxide to be cut by 7.6% per year. This means that by 2030 the Carbon Dioxide emissions will be cut by half. The scientists are also calling for a 3% a year cut in extracting coal, oil and gas - effectively leaving the reserves in the ground. But at present rather than a drop in production, the production has actually increased worldwide. During the pandemic most people thought that there would be a cut in emissions with few cars and planes travelling, but with people at home more emissions were produced.

Philip and Paul also look at "Orca", the name of Climeworks' new direct air capture and storage plant in Iceland. It will take carbon dioxide removal to the next level by combining direct air capture technology with the underground storage of carbon dioxide. Orca will capture 4000 tons of Carbon Dioxide per year - making it the world's biggest climate-positive facility to date. 

Safer heating Limestone

 How do you make your wire baskets to hold Limestone when heating it into Calcium Oxide - wind nichrome wire around and around. Sometimes I try to wrap as a parcel. - with mine the wire always expand lots and sometimes the limestone falls out? The Horizontal Bunsen stops limestone falling in if bits fall off. Then the Bunsen doesn't get damaged.. #STEM #Science #GCSE #Chemistry

Heating Light and Dark Surfaces

 Two surfaces one black and one silver heated by a light bulb. Simple to set up and excellent results captured on @pascoscientific  thermometers and Capstone. #GCSE #Science #Physics #iteachphysics

Electroscopes

 #Alevel #Physics Getting ready for the photoelectric effect - the cheap electroscope works brilliantly with a full deflection and the expensive one won't budge today - now to find the UV Lamp #iteachphysics #STEM #Science

DVD in a Mirror lies

In my last post I looked at a DVD reflecting the light. But what happens if you put a mirror next to the DVD. The colours are changed. No surely a mirror reflects what you see so whay are their different colours in the mirror. I know you think this is a fake so try it yourself and see that this really happens.

DVD Diffraction

 Simple ways of looking at the diffraction of light using an old DVD, doesn't cost anything and gives students a problem trying to explain why it works as it does. #Physics #iteachphysics #STEM #Science