Technology

In internet dead zones, rural schools struggle with distanced learning
Many American schools are back in class via distance learning. It's stressful everywhere but especially in rural districts where most students lack high-speed internet and cellphone service at home.
Paradox-free time travel is theoretically possible, researchers say
In the peer-reviewed journal article, University of Queensland physicists say time is essentially self-healing. Changes in the past wouldn't necessarily cause a universe-ending paradox. Phew.
NASA astronaut will vote from space
Astronauts have been able to cast ballots from above since the Texas legislature gave its blessing in 1997. "It's critical to participate in our democracy," NASA astronaut Kate Rubins said.
Can circuit breakers stop viral rumors on Facebook, Twitter?
False claims that blame left-wing activists for wildfires in Oregon have spread on social media. To stop the rumors, some experts say platforms should take inspiration from the stock market.
Trump's TikTok deal: What just happened and why does it matter?
President Trump is claiming victory after blessing a deal in which Oracle and Walmart will own a stake of TikTok, but experts wonder whether the terms of the agreement will really change anything.
TikTok ban averted: Trump gives Oracle-Walmart deal his 'blessing'
U.S. tech company Oracle is joining with Walmart to form a new entity called TikTok Global, which will be headquartered in the U.S. That arrangement appears to satisfy the White House's concerns over the security of American user data.
U.S. banning use of WeChat, TikTok for national security
The U.S. will ban the downloads of the Chinese apps TikTok and WeChat on Sunday, with a total ban on the use of the latter, citing national security and data privacy concerns. A total ban on the use of TikTok will follow on Nov. 12, but Commerce Secretary Wilbur Ross said that access to that app may be possible if certain safeguards are put into place.