53 Search results for science

Artistic representation of magnetic fields around a magnetic compass.

Can Strong Magnetic Fields Affect Humans?

Humans are made up of blood. And blood has iron in it. So what happens if a human is placed inside a very strong magnetic field? Will it affect the human body in any way? In this edition of Geekswipe, we’re going to look into the types of magnetism that exist in the world, and how a human body would react to different strengths of magnetic fields.

What Is Hydrogen-alpha?

Hydrogen alpha is a specific wavelength of visible light at 656.281 nm. A hydrogen atom emits a photon at this specific wavelength when its electron jumps from an excited quantum state or electron shell or energy level of n=3 to a lower level of n=2. Explore what H-alpha is, and how it is applied in astronomy.

Photograph of an orange inside a freezer.

How Long Can Food Be Stored in the Refrigerator?

We, humans, feed on plants, animals, and fungi. And boy, we like it fresh, don’t we? In this edition, explore why foods spoil, the process of decomposition, the preservation techniques, and find out how long food can stay unspoiled in a refrigerator.