Science and Technology

When Augustin Lignier, a professional photographer in Paris, was in graduate school, he began to ponder the point of picture-taking in the modern world: Why did so many of us feel compelled to photograph our lives and share those images online?It was not a novel question, but it led Mr. Lignier to a surprising place, and before long he found himself building what was, in essence, a photo booth for rats.He took inspiration from B.F. Skinner, the famous behaviorist who had devised a test chamber to study learning in rats. The Skinner box, as it became known, dispensed food pellets…

When Apple released the Apple Watch in 2015, it was business as usual for a company whose iPhone updates had become cultural touchstones. Before the watch went on sale, Apple gave early versions of it to celebrities like Beyoncé, featured it in fashion publications like Vogue and streamed a splashy event on the internet trumpeting its features.But as Apple prepared to sell its next generation of wearable computing, the Vision Pro augmented reality device, it marched far more quietly into the consumer marketplace.The company said in a news release this month that sales of the device would begin Friday. No…

Jan. 19: This article was updated to include information from a news conference the day after it was first published.A spacecraft that was headed to the surface of the moon has ended up back at Earth instead, burning up in the planet’s atmosphere on Thursday afternoon.Astrobotic Technology of Pittsburgh announced in a post on the social network X that it lost communication with its Peregrine moon lander at 3:50 p.m. Eastern time, which served as an indication that it entered the Earth’s atmosphere over the South Pacific at around 4:04 p.m.On Friday, the United States Space Command confirmed the destruction…

Apple said on Wednesday that it would begin selling its flagship smartwatches without the ability to detect people’s blood-oxygen levels.The tech giant will drop the feature starting Thursday after losing a patent case over its blood-oxygen measurement technology two months ago. The court ordered Apple to stop selling its Apple Watch Series 9 and Watch Ultra 2 devices. Rather than discontinue sales, the company sought permission to continue selling the devices after removing the infringing technology.People who buy a new watch in the United States will still see Apple’s Blood Oxygen app on the devices, the company said. But if…

Breana Newton, a legal coordinator in Princeton, N.J., who posts regularly about books on TikTok, was one of the people who responded to Ms. Blalock’s video. “I am going to show you bookshelf wealth,” Ms. Newton, 33, says in a video of her own. “Ready?”She then gives viewers a brief tour of her home, showing books everywhere — on shelves, in overflow piles here and there, and strewed across the bed. Absent is the sense that the rooms have been staged, or that the books were bought with the consideration of how they would look on Instagram.In an interview, Ms.…

California has long championed renewable energy, but a change in the state’s policies last year has led to a sharp decline in the installation of residential rooftop solar in the state.Thousands of companies — including installers, manufacturers and distributors — are reeling from the new policy, which took effect in April and greatly reduced incentives that had encouraged homeowners to install solar panels. Since the change, sales of rooftop solar installations in California dropped as much as 85 percent in some months of 2023 from a year earlier, according to a report by Ohm Analytics, a research firm that tracks…

For more than a decade, Apple was the stock market’s undisputed king. It first overtook Exxon Mobil as the world’s most valuable public company in 2011 and held the title almost without interruption.But a transfer of power has begun.On Friday, Microsoft surpassed Apple, claiming the crown after its market value surged by more than $1 trillion over the past year. Microsoft finished the day at $2.89 trillion, higher than Apple’s $2.87 trillion, according to Bloomberg.The change is part of a reordering of the stock market that was set in motion by the advent of generative artificial intelligence. The technology, which…