Some animals also navigate using the earth’s magnetic field. From the idea that there may be some relationship with these two things, this experimental earthquake detector was born. [ ...

Here’s a great magnetic levitator build ... That measurement is compared to a second detector mounted slightly lower. The circuit adjusts the electromagnetic field, making sure the object ...

The turtles rely on Earth’s magnetic field to help them navigate in two ... When a powerful neutrino traveled through the partly finished ARCA detector off the coast of Italy, it set off sensors ...