You can achieve excellent oral hygiene with either a manual or an electric toothbrush, according to Tricia Quartey, DMD, a dentist in Brooklyn, N.Y., and a spokesperson for the American Dental Association. Your technique matters more. “It’s in the brusher, not the toothbrush,” she says. But if you have dexterity limitations, an electric toothbrush may…
3. Warm air is leaking in. Check the seals around your window AC to make sure hot air isn’t getting in and cold air isn’t seeping out. Reseal around your unit with weather stripping if necessary. “Most new window units come with insulation panels to place over the plastic adjustable side panels,” says Chris Regan,…
The original version of this story appeared in Quanta Magazine. When Todd Sacktor was about to turn 3, his 4-year-old sister died of leukemia. “An empty bedroom next to mine. A swing set with two seats instead of one,” he said, recalling the lingering traces of her presence in the house. “There was this missing…
Vehicles Recalled • Porsche Taycan EVs manufactured between Oct. 21, 2019, and Aug. 26, 2025 • Porsche Panamera E-Hybrid sedans manufactured between June 17, 2024, and June 19, 2025 • Porsche Panamera sedans manufactured between Oct. 19, 2023, and June 25, 2025 • Porsche Cayenne E-Hybrid SUVs manufactured between Aug. 16, 2018, and June 4, 2025 • Porsche Cayenne SUVs…
Organic bedding brand Coyuchi recently launched its own organic mattress, combining cotton, wool, and Dunlop latex atop individually wrapped coils. While Coyuchi’s linen sheets are excellent, I was a little nervous to try the company’s first mattress effort. Bedding is not a mattress, after all, and expertise does not always transfer across endeavors. In this…
Our engineers developed a testing protocol based heavily on the feedback from users with lived experience of using mobility scooters. One of our distance tests measures how long each scooter can travel on a full charge over an outdoor course with hills and curves; the other measures recharging by miles per hour of charge, to…
Jim Sanborn couldn’t believe it. He was weeks away from auctioning off the answer to Kryptos, the sculpture he created for the CIA that had defied solution for 35 years. As always, wannabe solvers kept on paying him a $50 fee to offer their guesses to the remaining unsolved portion of the 1,800-character encrypted message,…
Imagine you’re walking your dog. It interacts with the world around you—sniffing some things, relieving itself on others. You walk down the Embarcadero in San Francisco on a bright sunny day, and you see the Ferry Building in the distance as you look out into the bay. Your dog turns to you, looks you in…
While the Beats Pill used to be a common sight around parties and campfires, it slowly fell out of favor as Bluetooth speakers with better battery life and more advanced features hit the scene. In 2024, Apple decided to update the Pill, and it was a big jump in terms of catching up, or even…
If you’re running out of storage space on your laptop or you need to back up your data and store that backlog of videos you’re going to edit one day (I am, I swear), an external hard drive can solve your problem. The trouble is, there are hundreds of drive options ranging from dirt-cheap to…