Technology

Lothar Meyer, a German chemist, created a partial periodic table in 1864, and a more complete version in 1869. “Structurally, Meyer and Mendeleev’s tables were very similar,” said Alan Rocke, a science historian at Case Western Reserve University, who gave a talk about Meyer at the A.C.S. anniversary symposium. Initially, the table’s periodicity and its […]

“It takes several things to come together to be able to revitalize the brand,” Mr. Carlisle said while at the wheel of a CT6 sedan zipping along Interstate 96 near Detroit. “If you’ve been off people’s radar screens, which we were, they move on to other manufacturers. We have to get back on their screens.”

Equipped with hoses connected to rubber backpacks, Brazilian firefighters in the Amazon on Monday raced in a truck along dirt roads toward plumes of smoke after a spotter in a military helicopter directed them to a fast-spreading fire. A landowner opened the gate of a barbed wire fence and the firefighters set to work, dousing

SAN FRANCISCO — One of the biggest semiconductor makers in the United States on Monday initiated a broad legal attack on Taiwan’s dominant chip manufacturer, the latest twist in a complex geopolitical battle over electronic components that could affect big chip users like Apple and Google. Globalfoundries, which runs former IBM chip factories in New

The Group of Seven nations on Monday pledged tens of millions of dollars to help fight raging wildfires in the Amazon and protect its rainforest, even as Brazilian President Jair Bolsonaro accused rich countries of treating the region like a “colony.” The international pledges at a G-7 summit in France included $20 million from the

The Latest on the summit of leaders from the Group of Seven democracies (all times local): 9 p.m. President Emmanuel Macron says U.S. sanctions on Iran have succeeded in changing the stance of its leaders but also is expressing concerns that the pressure could inflame the region if pushed too far. Speaking after a G-7

How much marijuana is really in that pot brownie? Chocolate can throw off potency tests so labels aren’t always accurate, and now scientists are trying to figure out why. In states where marijuana is legal, pot comes in cookies, mints, gummies, protein bars — even pretzels. These commercial products are labeled with the amount of

The crew of the International Space Station has successfully relocated a Soyuz space capsule to another docking port to facilitate the rendezvous with another spacecraft. The maneuver followed Saturday’s failed docking of the Soyuz MS-14 spacecraft. The docking attempt was aborted due to a suspected glitch linked to an automated control system on board the

Eggs removed from the last two female northern white rhinos have been fertilized with sperm from the now-dead last male, but it will be about 10 days before it’s known whether the eggs have become embryos, an Italian assisted-breeding company said Monday. “We expect some of them will develop into an embryo,” Cesare Galli, a

Democratic presidential candidate Bernie Sanders has told voters in coal-producing Kentucky that it’s possible to be a friend of coal miners and a believer in climate change and the need for cleaner energy sources to combat it. In blunt terms rarely heard in Kentucky’s political circles, the Vermont senator said Sunday on a stop in