Quote:
Originally Posted by Biggd
How long before we see electric boats? Tesla is developing some of the fastest cars on the road. Will we see some of these engines in boats soon or will electrics not mix well with water?  |
They already exist, but are extremely limited in range due to the huge difference in power density between petroleum and batteries. I think the best batteries have something like 5% of the power density of petroleum. Some day, that will probably change dramatically. I think graphene will make batteries, motors, solar cells, and conductors in general, vastly more efficient and compact in the next few years.