best spin bike in australia image
csmuch41
i wanted to make an electric bike but i dont know how to make the chain spin... how does it work?
does electricity and battery make it spin or what how does this all work?
Answer
You are right. An electric motor and battery are what is needed.
But most electric motors are either direct drive in the rear hub OR there is a roller that drives the front wheel directly. With your level of expertise I'd recommend getting a kit. Australia do some good ones.
You are right. An electric motor and battery are what is needed.
But most electric motors are either direct drive in the rear hub OR there is a roller that drives the front wheel directly. With your level of expertise I'd recommend getting a kit. Australia do some good ones.
why humans shouldn't preserve biodiversity in the biosphere?
Samantha
I'm doing a debate a school and I need some reason why humans shouldn't preserve biodiversity in the biosphere. I doubt there are any reason though.
Answer
Well... some aspects of biodiversity are bad. Mosquitos, ticks, bedbugs, rats, and mice carry diseases that infect humans and farm animals and pets. Certain insects are doing serious damage to trees and crops. Zebra mussels are taking over native species in the Great Lakes and many estuaries in the U.S. Riding your bike at night would be a much different matter if mountain lions or hyenas or wolves hunted in your city.
In the case of wolves... they were reintroduced into areas in western U.S. and cattle ranchers are hurt by livestock losses. Cattle ranchers around Yellowstone Park are hurt by a disease that spreads to their cattle from bison who wander out of the Park. People in Australia worry about poisonous snakes and spiders in their yards that can kill people. Biologists in Florida want to get rid of pythons which were introduced by people abandoning pet snakes. The pythons are killing off native species.
If you do some research, you can probably find more examples you can "spin" as anti-biodiversity.
Well... some aspects of biodiversity are bad. Mosquitos, ticks, bedbugs, rats, and mice carry diseases that infect humans and farm animals and pets. Certain insects are doing serious damage to trees and crops. Zebra mussels are taking over native species in the Great Lakes and many estuaries in the U.S. Riding your bike at night would be a much different matter if mountain lions or hyenas or wolves hunted in your city.
In the case of wolves... they were reintroduced into areas in western U.S. and cattle ranchers are hurt by livestock losses. Cattle ranchers around Yellowstone Park are hurt by a disease that spreads to their cattle from bison who wander out of the Park. People in Australia worry about poisonous snakes and spiders in their yards that can kill people. Biologists in Florida want to get rid of pythons which were introduced by people abandoning pet snakes. The pythons are killing off native species.
If you do some research, you can probably find more examples you can "spin" as anti-biodiversity.
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