Having acheived hands-free toasting last week, this week we started in on a new challenge: reverse-engineering Ben's solar-powered toy car.
Our goals in this new project are to explore
--a new source of power (DC from photovoltaic solar cells instead of AC from the wall outlet)
--a new type of resistance (revolution of a motor rather than heat from wire)
--a new type of work (motion instead of heat.
Next week we'll solder our solar cell "fuel" sources, before connecting them to motors and wheels!