The Many Deaths of the Joker

September 25, 2017

The Many Deaths of The Joker. The villain is killed off time and time again, but he's too good to get rid of permanently.

The Magazine That Started a Feminist Movement in Japan. Seitō was groundbreaking literature in 1911.

Is Beaming Down in Star Trek a Death Sentence? We don't know whether the reassembled atoms at the other end are the real you.

The True Story Behind Billie Jean King’s Victorious “Battle of the Sexes.” It was just one chapter in her campaign to elevate women in tennis.

The Ultimate, Indisputable Ranking of Planets in the Solar System, with a justification for each. Earth needs some help to regain its formerly stellar reputation.

The Delicate Art of the Amusement Park Caricature. The artist must negotiate the body image issues of strangers every day.

America's Flood Epidemic. Houston has seen three "500-year floods" in just the last three years.

11 Strange Battlefields Where the Cold War Was Fought. There was no competition too inconsequential for the U.S. And the Soviet Union.

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Smart Shopping

Whiten Your Teeth From Home for $40 With This Motorized Toothbrush

BY Smart Shopping Team

July 13, 2020

Since many people aren't exactly rushing to see their dentist during the COVID-19 pandemic, it's become more important than ever to find the best at-home products to maintain your oral hygiene. And if you're looking for a high-quality motorized toothbrush, you can take advantage of this deal on the AquaSonic Black Series model, which is currently on sale for 71 percent off.

This smart toothbrush can actually tell you how long to keep the brush in one place to get the most thorough cleaning—and that’s just one of the ways it can remove more plaque than an average toothbrush. The brush also features multiple modes that can whiten teeth, adjust for sensitive teeth, and massage your gums for better blood flow.

As you’d expect from any smart device, modern technology doesn’t stop at functionality. The design of the AquaSonic Black Series is sleek enough to seamlessly fit in with a modern aesthetic, and the charging base is cordless so it’s easy to bring on the go. The current deal even includes a travel case and eight Dupont replacement heads.

Right now, you can find the AquaSonic Black Series toothbrush on sale for just $40.

Price subject to change.

AquaSonic Black Series Toothbrush & Travel Case With 8 Dupont Brush Heads - $39.99

See Deal

This article contains affiliate links to products selected by our editors. Mental Floss may receive a commission for purchases made through these links. If you haven't received your voucher or have a question about your order, contact the Mental Floss shop here.

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Morning Cup of Links

Climate Change Is Coming for America’s National Parks

BY Miss Cellania

September 28, 2018

Climate Change Is Coming for America’s National Parks. Imagine Glacier National Park without a glacier.

The Chimp Who Believed She Was Human. After being raised in a human home, it took years for Lucy to learn to be an ape again.

The Mathematical Madness of Möbius Strips and Other One-Sided Objects. A look at the history of the mind-bending field of topology

These 1930s Housewives Were the Godmothers of Radical Consumer Activism. They protested rising food prices with the Hamtramck Meat Strike.

Disneyland’s Fantasyland Recreated in Incredible Detail in a Basement. A railroad engineer hand-crafted his own theme park over ten years.

The Princess Who Worked at Macy’s. The Queen of Romania also built furniture, raised poultry, and enjoyed off-roading.

America is on the Verge of a Nursing Crisis. Our nursing schools don't have the capacity to supply our current needs, much less our future needs.

15 Amazing Animal Reunions. It's good to know that pets lost for years might find their way home.

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