Topic: salt

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How do ocean currents work?

In 1992, a cargo ship carrying bath toys got caught in a storm. Shipping containers washed overboard, and the waves swept 28,000 rubber ducks and other toys into the North Pacific. But they didn’t stick together -- th...

Electrified Pickle

"The first thing to realize is that when you pickle something you put it into a mixture of salt and vinegar. Salt contains ions, sodium ions, chloride ions, and salt solution is electrically conducting, but it's not v...

A brie(f) history of cheese

Before empires and royalty, before pottery and writing, before metal tools and weapons – there was cheese. As early as 8000 BCE, Neolithic farmers began a legacy of cheesemaking almost as old as civilization. Today, t...

Making ice cream from a 350-year-old recipe

"To make icy cream... Take three pints of the best cream, boyle it with a blade of mace, or else perfume it with orang flower water..." This begins the 350-year-old recipe for ice cream, "thought to be the earliest re...

Four levels of chocolate chip cookies: From amateur to food scientist

Learn a few professional tips of what to do (and maybe what not to do) when baking this classic: Chocolate chip cookies. Amateur baker Alina, home cook Lorenzo, and Penny, a professional chef, demonstrate how they mak...

Using seawater and sunlight to grow sustainable food in the desert

Australia's Sundrop Farms uses sunlight to desalinate seawater. The resulting fresh water is used and re-used to power and irrigate four hydroponic greenhouses with 175,000 tomato plants in each. Those sustainable yea...

Use a 9-volt battery to break water into its elemental components

In the 1987 miniseries The Ring of Truth: An Inquiry into How We Know What We Know, Philip Morrison proves that a water molecule is composed of two hydrogen (H) atoms & one oxygen (O) atom with a simple demonstration....

Butterflies and bees drinking turtle tears in the Peruvian Amazon

Why are these butterflies and bees swarming around turtle faces? In this episode of the Jungle Diaries, entomologist Phil Torres sees a rare sight in the Peruvian Amazon: Tear-drinking butterflies and bees. The behavi...

Making ice cream with Liquid Nitrogen and Dr. Kate Biberdorf

Dr. Kate Biberdorf is a lecturer and the Director of Demonstrations and Outreach at The University of Texas in Austin, and an internet famous chemist who creates impressive explosions for students all across Texas. In...

Turning quick sketches into beautiful desserts

At Chicago's critically acclaimed restaurant Elske, co-owner Anna Posey uses her talents as both an artist and a chef to draw sketches of her dessert inventions before she puts them together with food. In this video f...

Salt crystal snowflakes, DIY candy canes, & more holiday science projects

If you're looking for a few DIY winter science activities for the holidays, these Selection Box Science videos by The Big Bang UK Young Scientists & Engineers Fair are fun and festive options. Greg Foot demonstrates a...

NASA simulates how dust, smoke, and sea salt have traveled the planet

Watch as sea salt, dust, and smoke—aerosol particles traveling on the winds—have moved across our planet in 2017. This animated simulation, "based on both satellite observations and computer models that use physical e...

How balloons are made – The Magic of Making

How are balloons made? In this video from The Magic of Making, a series of short films for kids created in partnership with BBC Worldwide, we begin with a history lesson about Kew Gardens and stolen rubber trees from ...

Throwing a simple pottery salt pot on the wheel

From Ingleton Pottery, watch this quick and simple demonstration of how a pottery salt cellar or pot can be created on a potter's wheel. The piece consists of a closed round vase shape that's given a large side hole f...

Chef Ludo Lefebvre visits the Bordier Butter Factory

Butter blocks, butter blobs, butter rolls, butter balls, butter cones, butter wheels! Go behind the scenes of a French butter factory with chef Ludo Lefebvre in this subtitled bonus scene from the Anthony Bourdain-pro...

Here’s Where the Juice That Powers Batteries Comes From

Atomic number 3 on the periodic table, lithium is the 'li' in the li-ion batteries that are inside of our smartphones, laptops, digital cameras, and electric vehicles. Above, Alejandro Bucher gives Bloomberg's Ashlee ...

Why is Lake Hillier pink?

Fly over Lake Hillier, a stunning pink lake on Middle Island, off the south coast of Western Australia. The footage was filmed by Jaimen Hudson, who captures Australia's natural wonders by drone. Lake Hillier is a...

Crystallization2, a 4K macro time lapse

The subjects of this project were droplets of saturated aqueous solutions containing various inorganic salts (e.g. table salt, sodium sulfate etc.). The evaporation of water initiated the crystallization processes ins...

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