I recently flew to Seattle to talk to an electrical engineer regarding the electricity/magnetism segments for Physics 101. You would think that for all we know on electricity, this would be a no-brainer. But some parts of electricity are very odd; maybe a brainer or even a two-brainer!
We talked for over 8 hours. The main question was: "What physically causes the filament of a light bulb to glow hot?"
To actually show what is happening at the atomic level
can be so complex that by the second year in college they abandon the attempt
and just switch to mathematic models.
Incredibly, the segment on electricity and magnetism was more challeging
to write and edit
than light or sound or gravity or even quantum mechanics!
There were a few perks on the trip: Seattle coffee!
We are still aiming for a release date in Spring of 2015. If you'd like to be notified when Physics 101 becomes available and if I met my deadline (**ahem**) --