Why do your knuckles pop? - Eleanor Nelsen

Why do your knuckles pop? – Eleanor Nelsen

What’s that sound? Depending on whom you ask, the crackle of popping joints is either the sound of sweet relief or the noxious tones of a stomach-turning habit. Really, though....

Sunlight is way older than you think - Sten Odenwald

Sunlight is way older than you think – Sten Odenwald

You may know that it takes light a zippy eight minutes to reach us from the surface of the Sun, so how long do you think it takes light to...

Debunking the myths of OCD - Natascha M. Santos

Debunking the myths of OCD – Natascha M. Santos

There’s a common misconception that if you like to meticulously organize your things, keep your hands clean, or plan out your weekend to the last detail, you might have OCD....

How batteries work - Adam Jacobson

How batteries work – Adam Jacobson

You probably know the feeling. Your phone utters its final plaintive “bleep” and cuts out in the middle of your call. In that moment, you may feel more like throwing...

Will future spacecraft fit in our pockets? - Dhonam Pemba

Will future spacecraft fit in our pockets? – Dhonam Pemba

When you picture a spaceship, you probably think of something like this, or this, or maybe this. What do they all have in common? Among other things, they’re huge because...

What’s the big deal with gluten? - William D. Chey

What’s the big deal with gluten? – William D. Chey

Maybe you’ve recently seen the phrase “gluten-free” on food packaging, or take-out menus, shampoo bottles, apartment listings, the tag of your shirt, on a hammer, as a lower back tattoo,...

How to detect a supernova - Samantha Kuula

How to detect a supernova – Samantha Kuula

Just now, somewhere in the universe, a star exploded. There goes another one. In fact, a supernova occurs every second or so in the observable universe, and there is one...

How plants tell time - Dasha Savage

How plants tell time – Dasha Savage

In the 18th century, Swedish botanist Carolus Linnaeus designed the flower clock, a timepiece made of flowering plants that bloom and close at specific times of day. Linnaeus’s plan wasn’t...

Can you solve the famously difficult green-eyed logic puzzle? - Alex Gendler

Can you solve the famously difficult green-eyed logic puzzle? – Alex Gendler

Imagine an island where 100 people, all perfect logicians, are imprisoned by a mad dictator. There’s no escape, except for one strange rule. Any prisoner can approach the guards at...

How X-rays see through your skin - Ge Wang

How X-rays see through your skin – Ge Wang

In 1895, a physicist named Wilhelm Roentgen was doing experiments with a cathode tube, a glass container in which a beam of electrons lights up a fluorescent window. He had...

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