Topic: iron

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Mars 101: An introduction to the red planet

From its blood-like hue to its potential to sustain life, Mars has intrigued humankind for thousands of years. Learn how the red planet formed from gas and dust and what its polar ice caps mean for life as we know it....

The untold history of ironworking in central & west Africa

In the lush forests of modern-day Central African Republic, sometime between 1800 and 1500 BC, craftsmen are believed to have discovered iron. New evidence indicates that ironworking began in the heart of Africa. ...

How to collect black sand with a magnet

If you're ever at a beach with some black sand in the mix, run a magnet through the sand to see if the black sand sticks. Exploratorium educator Ken Finn demonstrates this experiment with a magnet and a plastic cup at...

The Master Microfixer Teaching the World to Fix iPhones

Master Microfixer Jessa Jones repairs iPhones and iPads in ways that Apple doesn't: board-level micro-repair. Her background as a geneticist—"a field that involves the study of how really really tiny things built insi...

Making a Forge Blower – Primitive Technology

A rotary fan from pieces of bark, a fan cover and spout made from unfired clay, a bow drill to power it, and a mud furnace to concentrate the heat. Watch how Primitive Technology constructs a forge blower from wood, b...

Britain’s Longest-serving Blacksmith: Hardy Fred Harriss

Britain’s longest-serving blacksmith is still forging iron in his workshop - at the age of 84. Hardy Fred Harriss, 84, first picked up a hammer and tong aged ten in 1938 and is still w...

The last five, wonder-filled minutes of Extreme Stars

You’re made of carbon, you’re made of oxygen, there’s iron in your blood. All of those things had to be generated inside the core of a star. There’s no other way to get them. So when you ...


 
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