Neodymium magnets are used in numerous applications requiring strong, compact permanent magnets, such as electric motors for cordless tools, hard disk drives, magnetic holddowns, and jewelry clasps.

⚛🚀❤ HOW THEY WORK? – In order to use these zingers, place one in each hand, and toss them both upwards, and at each other. If they are close enough, they will attract each other and produce a loud rattling sound and spin in the air.

The singing magnets are a little larger than size of olives; the shape is similar to a (U. S.) football but slightly more elongated. Neodymium magnets in ‘ordinary’ shapes produce boring ‘plinks’ when they snap together. Something about the shape of these magnets makes the sound much longer-lasting and entertaining.

This material is currently the strongest known type of permanent magnet and was developed in the 1980’s. It is typically used in the construction of head actuators in computer hard drives and has many electronic applications, such as electric motors, appliances, and magnetic resonance imaging (MRI).

The nearest known magnetar to Earth is 1E 1048.1-5937, located 9,000 light-years away in the constellation Carina.

(“Matter falling onto the surface of a neutron star would be accelerated to tremendous speed by the star’s gravity. The force of impact would likely destroy the object’s component atoms, rendering all its matter identical, in most respects, to the rest of the star.”) More about the Chandrasekhar limit of neutron stars.

The radiation from the neutron star will start affecting you. The result won’t be death, and this won’t be much of a problem if your suit contains a radiation shield. The temperature gradually increases, and will probably toast you. Neutron stars are extremely hot, and contain plasma on their surface.

That star can either be completely destroyed, become a black hole, or become a neutron star. The outcome depends on the dying star’s mass and other factors, all of which shape what happens when stars explode in a supernova. Neutron stars are among the densest objects in the cosmos.

You can’t touch a neutron star. The gravity is so intense that you would be spaghettified long before you got close enough to touch it. Your fingertips would be stretched out to a hundred miles long, while you feet would be thousands of miles away.

Neutrons stars are extreme objects that measure between 10 and 20 km across. They have densities of 1017 kg/m3(the Earth has a density of around 5×103 kg/m3 and even white dwarfs have densities over a million times less) meaning that a teaspoon of neutron star material would weigh around a billion tonnes.

The power from the supernova that birthed it gives the star an extremely quick rotation, causing it to spin several times in a second. Neutron stars can spin as fast as 43,000 times per minute, gradually slowing over time.

For massive stars between about 8 and 20 solar masses, this collapse squeezes the star’s core to extremely high densities, while the star’s outer layers rebound and blow away in a colossal ‘supernova’ explosion, leaving behind a super-dense neutron star. …

Neutron stars can be dangerous because of their strong fields. If a neutron star entered our solar system, it could cause chaos, throwing off the orbits of the planets and, if it got close enough, even raising tides that would rip the planet apart. But the closest known neutron star is about 500 light-years away.

If an object were to fall from a height of one meter on a neutron star 12 kilometers in radius, it would reach the ground at around 1400 kilometers per second. However, even before impact, the tidal force would cause spaghettification, breaking any sort of an ordinary object into a stream of material.

Neutron stars are the cinders left when massive stars implode, shedding their outer layers in supernova explosions. The stars are poised on the edge, just this side of collapsing into a black hole, and the immense gravitational pressure squeezes their electrons and protons into neutrons.

It is estimated to be about 34 million years old. In theory a neutron star should outlive any other type of star. So the oldest neutron star is probably at least as old as the oldest known star, or nearly the age of the universe.

Are pulsars dangerous to us on earth? No. They may be responsible for some of the cosmic rays we experience at Earth, but their effect on any one person is small.

Since the light energy escapes, the production of the energy beam robs energy from the pulsar, so the pulsar’s rotation slows down (angular momentum does slowly decrease). Eventually, the pulsar dies away when the neutron star is rotating too slowly (periods over several seconds long) to produce the beams of radiation.

Astronomers can see pulsars only because electromagnetic radiation, especially radio waves, streams from their magnetic poles. As the pulsars spin, these streams point, once per go-around, at Earth. They sweep over our planet like transient lighthouse beams, and telescopes pick up each one as a pulse.

Because pulsars are small and faint compared to many other celestial objects, scientists find them using all-sky surveys: A telescope scans the entire sky, and over time, scientists can look for objects that flicker in and out of view. The Parkes radio telescope in Australia has found the majority of known pulsars.