Whirligig Science

Are children’s toys making your head spin? This is Sandra Tsing Loh with the Loh Down on Science. The centrifuge is an essential lab tool. It’s like a really powerful salad spinner. It can separate fluids into layers based on their density. Centrifuges are critical for diagnosing diseases like malaria.

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The Perfect Wave

Surf’s up dude! Grab your. . . calculator? This is Sandra Tsing Loh with the Loh Down on Science. Surfers travel all over the world in search of the perfect wave. But even if you’re not riding monster waves in Hawaii, you deserve a good ride. It’ll happen, IF you

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Shaken, Not Stirred

Is the key to finding dark matter. . . in your fridge? This is Sandra Tsing Loh with the Loh Down on Science. Water freezes because impurities act as “seeds” for ice crystals to grow. But, if you put PURE water in the freezer, it can stay liquid – even

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Chunky Chocolate

This study is a chocolate mess! In a GOOD way… This is Sandra Tsing Loh with the Loh Down on Science. Chocolate – the miracle food! Like magic, chunks of fat, sugar, and cocoa solids become the treat we all love! But how does this combo produce LIQUID chocolate? Is

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Silent Running

It’s a bird! It’s a plane! It’s… an ion-plane? This is Sandra Tsing Loh with the Loh Down on Science. Aircraft fly using thrust from a power source to generate lift with their wings. Usually, that power source is a gas guzzling engine, or a noisy propeller. City dwellers pay

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Quantum Buzz

Hate crowds? Need your “personal space?” Negatively charged electrons do too! This is Sandra Tsing Loh with the Loh Down on Science. To understand electrons, scientists have developed a special technique called density functional theory – D-F-T for short. D-F-T is used to predict how electron crowds move in an

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Whoa There, Raindrops!

A scientific storm is brewing … about the speed of rain. This is Sandra Tsing Loh with the Loh Down on Science, saying: According to physics, everything that falls has a terminal velocity. Apples, rain, people. Terminal velocity is a steady speed, where gravity and air resistance balance out. For

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Taking a Dive

There’s nothing like seabirds to. . . take a dive! This is Sandra Tsing Loh with the Loh Down on Science. It’s a beautiful sight: seabirds diving head first into the water to catch unsuspecting prey. A perfect ten! But the northern gannet (GA-nit) takes gold with its flawless, high-speed

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Slip n’ Slide

Slipping on a banana peel – Cartoon pratfall, or fascinating biology? This is Sandra Tsing Loh with the Loh Down on Science. What makes banana peels so slippery? That’s what Kiyoshi Mabuchi colleagues at Japan’s Kitasato University wondered. So they set up a scientific slip n’ slide! They placed a

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Moon Walk

Moon walking: Not as easy as it looks! This is Sandra Tsing Loh with the Loh Down on Science. For astronauts, the moon’s weaker gravity can be disorienting. How do we know? Astronauts stumble! NASA has the blooper reels to prove it. That’s because gravity doesn’t just anchor us. It

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