Did you think quantum tunnelling was just a useless theory?

By , February 16, 2010 1:13 pm

There’s a nice item on quantum tunnelling on the BBC News site.

image courtesy of Peratech

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.

wave-particle duality electron experiment

By , February 16, 2010 12:37 pm

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?

There is a second video explaining how the electrons are produced if you are interested.  Watch it here.

Panorama Theme by Themocracy