Topic: measurement

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Sculpting Freddie Mercury

Canada-based Brazilian sculptor and teacher Juliana Lepine sculpts human likenesses with polymer clay. In the video above, she recreates Freddie Mercury, the lead vocalist of British rock band Queen, laying the clay o...

How Kanazawa gold leaf is made

Far too delicate to touch with fingertips—just one ten-thousandth of a millimeter thick—gold leaf foil is an extremely delicate, almost transparent material. It requires a humid climate, pure water for the manufacturi...

Engines of Destruction: The Science of Hurricanes

Harvey, Irma, Jose, Katrina, Maria, Sandy. Hurricanes have been major news stories in 2005 and 2012, and continue to be in 2017, starting in August when Harvey crossed the Caribbean and made landfall in Texas. What ca...

Voyager at 40: Humanity’s ambitious expedition into interstellar space

On August 20, 1977, NASA launched the Voyager 2 space probe, following it with Voyager 1's launch on September 5th, 1977. Together, the two spacecrafts are one of humanity's most ambitious expeditions into space. Taki...

Why America still uses Fahrenheit

Since I've moved to the US in 2010, there's one thing that I still don't fully understand: the imperial system. Virtually every country on earth uses Celsius but America has yet to follow. Although it might not seem l...

What counts as a mountain?

Mountains: super tall, rocky landforms that rise high above the surrounding environment, much higher than hills. We might draw one as a single peak like Mount Fuji, or as a zig zag line of peaks representing a mountai...

Building a DIY CNC-cut spiral staircase

This DIY Spiral Staircase was made with just over sixteen 12-layer plywood steps that are each rotated 30 degrees around a central steel pole. Designer and YouTuber Ben Uyeda of HomeMade Modern designed the layers to ...

How to spot a misleading graph

When they’re used well, graphs can help us intuitively grasp complex data. But as visual software has enabled more usage of graphs throughout all media, it has also made them easier to use in a careless or dishonest w...

How table tennis balls are made

The process of making table tennis balls includes lots of measuring and at least one trade secret. Competition-ready balls also go through a series of quality checks by hand—testing the balls' surface, veer, hardness,...

Fly over Jupiter with NASA’s Juno spacecraft

NASA's Juno Spacecraft is investigating Jupiter in a series of 37 orbits, and though images, data, and samples, these remarkable flybys have revealed some very cool things: 900 mile wide cyclones at the planet's poles...

Why Most Rain Never Reaches The Ground – Minute Earth

In our planet's constantly moving water cycle, our oceans, lakes, puddles, and other collections of water evaporate, or water transpires from plants. That vapor travels upwards into the atmosphere and can form clouds....

J is for Joule – Circuit Playground

Learn all about work (as defined by physics) and the Joule, a unit of energy measurement, with Adabot and English physicist James Prescott Joule (1818-1889). A summary from Universe Today: An apple is a favorite e...

Mars in a Minute: How Long is a Year on Mars?

One year for any planet is measured by how long it takes to orbit once around the sun. Since Mars is farther away from the sun than Earth, it takes almost twice as long: Earth orbits in 365 days. Mars orbits in 687 Ea...

Creating The Never-Ending Bloom: John Edmark’s spiral geometries

Artist, designer, inventor, and Stanford professor John Edmark creates sculptures that are driven by precise mathematics, but his interest in spiral geometries is driven by something more enigmatic... "a search for un...

Drones help scientists study Guatemalan volcanoes

A team of volcanologists and engineers from the Universities of Cambridge and Bristol has collected measurements from directly within volcanic clouds, together with visual and thermal images of inaccessible volcano pe...

How to make a coin sorting machine with cardboard

With some thick cardboard, a cutting knife, some hot glue, a ruler, and probably a bit of trial and error, you can create your own DIY coin sorting machine. The key to the sorting "mechanism" is to cut the right size ...

What’s inside a tape measure?

It's useful for measuring, fun to extend out as far as possible, and when its rocker is unlocked, the long metal measuring blade snaps quickly back inside of its shell. But how? What's inside a tape measure? In th...

Measuring the Berlin TV Tower with a ruler

Can you calculate how tall a building or monument is by using a ruler and the scale on a map? Mathematician Matt Parker attempts this ambitious math feat during his trip to the German capital. The structure he's aimin...

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