Sunday, 12 September 2021
Wilmshurst Machine
Saturday, 11 September 2021
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
Friday, 10 September 2021
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
Tuesday, 7 September 2021
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
Monday, 6 September 2021
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.
Sunday, 5 September 2021
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
Optically active Glucose
A-Level Chemistry: Viewing a glucose solution through two polarising filters. The light is initially extinguished, but glucose rotates it,...
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Negative feedback is a difficult concept to try and get over so I tried using a balance board and the @pascoscientific smart cart strapped...
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We went to the Bett Show a few weeks ago and there we saw a model of a Liver. It had been knitted so we thought we would have a go. After ...
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#Physics Taking wind speed readings using the PASCO scientific wireless weather station. Grabbing some monthly data on the weather in t...