Earth’s Magnetic Field: Magnetic fields around planets behave in the same way as a bar magnet. But at high temperatures, metals lose their magnetic properties. This fact makes it clear that Earth’s hot iron core isn’t what creates the magnetic field around our planet. Instead, a dynamo effect is what creates Earth’s magnetic field. To understand what a dynamo effect is, think of a bicycle light. Magnets in the dynamo, or generator, start spinning when a person pedals, which creates an electric current. The electricity generated powers the bicycle’s light. This process also works in reverse. If you have a rotating electric current, it will create a magnetic field.
Human Hibernation: The dream of suspended animation has long captivated the human imagination, reflected in countless works of mythology and fiction, from King Arthur and Sleeping Beauty to Captain America and Han Solo. By effectively pausing time itself for an individual, a state of stasis promises to enable the repair of lethal injuries, prolong life and allow for travel to distant stars.
Dads Experience Postpartum Depression: In the U.S., 1 in 7 fathers suffers from depression during the time of pregnancy and a child’s infancy. That number skyrockets to 1 in 4 men after birth around the three to six month period. If the mother experiences postpartum depression, 1 in 2 dads will also experience postpartum depression. Also, up to one-quarter of expecting fathers experience anxiety during pregnancy, and more than half have anxiety during their child’s infancy. These are worrisome statistics since research shows a strong correlation between anxiety and depression.--- This episode is sponsored by · Anchor: The easiest way to make a podcast. https://anchor.fm/app --- Send in a voice message: https://anchor.fm/sciencebytes/message Support this podcast: https://anchor.fm/sciencebytes/support
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