Electric Motor
topic on 3 shows · 6 statements across 6 episodes
David Senra 
Catalyst 
the a16z Podcast
6 statements about Electric Motor, every show
Dyson: Faster electric motors are smaller, lighter, and more energy efficient
“And the theory is the faster you make a motor go the smaller it can be, the fewer materials it can have, and the more electrically efficient it is.”
Gariman: Rare earth magnets enable the most efficient electric motors
“When we use Rare earth elements in magnets , we end up with the most strong magnets that we are aware of, or we can produce on our planet. And when we use very strong magnets in electric motors, we end up with highest efficiency in those electric motors.”
Garaman: Rare earth permanent magnets create the most efficient electric motors known
“So when we use rare earth permanent magnets, we happen to make the most efficient electric motors or generators out there that we know of.”
Webber: Global photosynthesis averages 0.3% efficiency, peaking at 10%
“The global photosynthetic mean is like.3% efficient, and really good crops in really healthy areas, and the ecosystem might be as high as a few percent, maybe eight or 10% in some places, and this is far shy of the efficiency of like an electric motor.”
Lubershane: Solar PV and motors require 50x less land than animal power
“But the total efficiency, if you take solar PV and then run that electricity through an electric motor to do useful work, It's on the order of probably 15 to 20%. So the upshot here is we need like 50 times less land today to get the same amount of energy, use…”
Evans: Consumers buy solutions, not underlying component technologies like electric motors
“Our grandparents could have told you how many electric motors they owned. You know, there was one in the car, and one in the refrigerator, and one in the vacuum cleaner. And now there's probably a dozen in your wing mirror, and you've got dozens of different e…”