1 To be safe, USDA recommends that all pressure canners must be vented 10 minutes before they are pressurized. 2  To vent a canner, leave the vent pipe (steam vent) uncovered (or manually open the petcock on some older models) after you fill the canner and lock the canner lid in place.
There would be no place to land, and the ship would get crushed under Neptune's massive gravity, or ripped apart by its weather. To get there, we would have to build a space ship that can travel extremely fast. Then it would have to orbit Neptune or be incredibly durable to get inside of the planet. It would also need a large supply of O2, food and water.
Neptune takes 60,190 earth days or 164.79 earth years to complete one rotation around the sun. 19 hours 165 Earth years The orbital period for Neptune is roughly 60,190 days o â¦ r about 165 Earth years (164.79 Earth years).That makes a year on Neptune the equivalant of 165 years on Earth.A year is the time it takes any planet or object to make one complete solar orbit. + 4 others found this useful.9 hours 165 Earth years The orbital period for Neptune is roughly 60,190 days o â¦ r about 165 Earth years (164.79 Earth years). That makes a year on Neptune the equivalant of 165 years on Earth. A year is the time it takes any planet or object to make one complete solar orbit. + 4 others found this useful.