3simple machines that make up a can opener

Hello There

The wheel and axle, the lever, and the wedge

Reason: The two long arms that clamp onto the can are levers. The handle which is used to rotate the can is the wheel and axle. Finally the blade is the wedge

I hope I helped
-Chris

Neptune is the eighth planet from the sun. it was the first planet to get its existence predicted by  mathematical calculations  before it was actually seen through a telescope on sept. 23, 1846. irregularities in the orbit of  uranus  led french astronomer alexis bouvard to suggest that the gravitational pull from another celestial body might be responsible. german astronomer johann galle then relied on subsequent calculations to   spot neptune via telescope. previously, astronomer galileo galilei sketched the planet, but he mistook it for a star due to its slow motion. in accordance with all the other planets seen in the sky, this new world was given a name from greek and roman mythology — neptune, the roman god of the sea.