Mouse hovering in the air

With the help of a strong electromagnetic field, American scientists have allowed mice to fly for several hours in the air.

Newscientist said, scientists used to lift grasshoppers and frogs by the magnetic field. Its principle is as follows: A strong electromagnetic field disturbs the motion of electrons in the water molecule, creating a new electromagnetic field that is inverted to the original electromagnetic field. The interaction between two electromagnetic fields creates directional thrust. If it is strong and upward, that repulsive force can overcome the attraction of the earth.

A mouse at NASA's Jet Test Center.(Photo: Telegraph)

Yuanming Liu, a scientist from NASA's Center for Jet Experiments (JPL) and colleagues built lifting equipment from a solenoid coil (metal coil becomes magnetic when electricity flows through). They cooled the coil to near absolute zero so it became a superconductor. When an electric current is passed, the coil creates a magnetic field that has a magnetic flux of up to 17 Tesla - about 300,000 magnetic fluxes of the globe.

The magnetic flux changes along the coil length. A water container is placed at the base of the coil that emits the opposite magnetic field. This magnetic field creates a repulsive force that is twice as large as the Earth's gravitational force, but is directed upwards. With this thrust at the bottom, the earth's gravity in the middle and the weightless environment at the top, Liu's coil can lift water-filled objects for a few hours, even a few days.

When the team placed a mouse 10g in the non-magnetic cage and put the cage in the area affected by the magnetic field, the mouse began to fly.

' We are very excited to see that scene. Previously, many people still said that even if you can raise water to the air, you still can't make the mouse fly , "Liu said.

Liu's group was happy, but the mouse was frightened. It tries to cling to something. ' I guess he's not used to flying. After flying out of the cage, the rat's body began to spin. Obviously animals don't like that, 'Liu commented.

The mouse is put into a non-magnetic cage and inserted into the area affected by the magnetic field, the mouse starts to fly up (Photo: abc)

After being sedated, the mouse was more calm during the second test. It hovered in the air for up to 3 hours. Even mice eat and drink while flying.

Liu's experiment will help them study the effects of the vacuum environment on humans during flights into space . The weightless state can cause osteoporosis, muscle atrophy, changes in blood circulation. Liu's lifting device allows us to put things in the air for an arbitrary amount of time, as long as they are between the earth and the weightless environment.

Liu's device is too small to pull people into the air, but he thinks the device capable of lifting people will be born in the future.

"It could theoretically happen, but the cost will be great ," he said.