with mr mackenzie
There’s a nice item on quantum tunnelling on the BBC News site.
Scientists at Peratech have developed “spikey” particles for use in the touchscreen of smartphones. The breakthrough is that the quantum tunneling effect means that the screen is pressure sensitive.
I found this video on quantum tunneling on youtube.
httpv://www.youtube.com/watch?v=6LKjJT7gh9s
I found this video on youtube. It is a good demonstration of electrons behaving like waves or particles, depending on their energy. Can you explain why the electron energy is important here?
httpv://www.youtube.com/watch?v=vCRNGqXBPRk
There is a second video explaining how the electrons are produced if you are interested. Watch it here.
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It’s a few months since we looked at centripetal acceleration in class but I thought I would share this article I found. I wonder how many people would dare to “co-write” a physics paper with Isaac Newton? The article is worth a read and I have attached a download link below.
While we’re talking about centripetal acceleration, Rhett Allain’s blog post that led me to the article is also very interesting.
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