The original version of this story appeared in Quanta Magazine. Hard problems are usually not a welcome sight. But cryptographers love them. That’s because certain hard math problems underpin the security of modern encryption. Any clever trick for solving them will doom most forms of cryptography. Several years ago, researchers found a radically new approach…
The keyword here is magnetic. You can use a magnet to check whether cookware is induction-compatible. If the magnet is strongly attracted to the pot or pan, you’re good to go. It could be that almost all your existing pots and pans are induction-compatible, except for a few nonstick aluminum pieces. If you plan to…
But should you choose a battery snow blower instead of a gas snow blower? “Battery snow blowers are really nipping at the heels of comparably sized gas models in terms of performance, and they offer advantages that gas snow blowers can’t match,” says Dave Trezza, who oversees CR’s snow blower tests. Battery-powered machines start instantly with…
Prior to publication, CR contacted the manufacturers of all 23 products we tested and shared our results and methodology with them. Five companies have not responded to our requests for comment: BSN, Dymatize, Jocko Fuel, Muscle Milk, and Owyn. Optimum Nutrition declined to comment, and Huel did not respond to questions about the amount of…
7. Check the circulars. Planning well to minimize your trips to the store can save you time and reduce your impulse purchases. “If you can save $30 by spending 15 minutes looking at grocery ads, is it worth it?” Economides asks. “I certainly think it is.” 8. Get a store loyalty card. Most grocery chains’…
Don’t try to remove the ice dam yourself. Few outdoor home repairs are as dangerous as working on a ladder resting against an icy gutter. The solution is to call a professional roofing contractor. They can remove excess snow from the roof and melt the ice that’s causing the backup. Climbing onto a slick and…
To help members find the best car at the lowest cost, we analyzed the average transaction price for new cars using national data from TrueCar, a CR partner, and sorted all models based on their selling price. These 10 models all meet our stringent standards for road-test performance, owner satisfaction, reliability, and safety to be…
Our testing shows that you have lots of great options. The top six phones in CR’s ratings are separated by just 1 point in Overall Score. And even the most basic models represent a leap in technology from a decade ago. That means you don’t have to buy the No. 1-rated phone to get a…
Want to be the hero of your next Super Bowl party? Check out the Ninja Crispi Portable Glass Air Fryer, an intriguing twist on the air fryer that’s a perfect option for air frying your favorite frozen snacks at your next potluck—it’ll help you win the day by frying up a batch of wings at…
The action includes the Ford Bronco, Expedition, Explorer, F-150, F-250 Super-Duty, F-350 Super-Duty, F-450 Super-Duty, F-550 Super-Duty, and Mustang, plus the Lincoln Aviator and Navigator from 2021 to 2023. (Specific years are listed below, though vehicles included in the recall will be determined via their vehicle identification number.) Loss of fuel pressure and flow from…