Shares of major chipmakers Nvidia and AMD have fallen amid concerns of new U.S. restrictions on the sale of artificial intelligence chips to China.
Nvidia says the U.S. government requires a new licence, effective immediately, to address the risk of chips being "used in, or diverted to a 'military end use'... in China and Russia."
There are fears the rule could lead to substantial lost revenue.
Shares of both chipmakers slipped in after-hours trading in New York. Nvidia's...
Indian billionaire Mukesh Ambani has announced a $25-billion plan to launch 5G mobile internet services in the country within two months.
Ambani, who heads the telecoms-to-retail group Reliance Industries, said the high-speed network will be introduced first in major cities, including New Delhi and Mumbai, the BBC reports.
He said it will expand to the rest of India by December 2023.
Speaking on Monday at Reliance's annual general meeting, Ambani said that once the firm's 5G network is...
NASA has called off the launch of its big new Moon rocket — the Space Launch System (SLS).
Controllers struggled to get an engine on the 100-metre-tall vehicle cooled down to its correct operating temperature, the BBC reports.
They had previously worried about what appeared to be a crack high up on the rocket but eventually determined it was merely frost build-up.
The SLS is the biggest rocket ever developed by NASA. It will be used to...
Race was already known to matter when it came to health outcomes for infants with congenital heart disease (CHD), the most common birth defect, affecting 1 in 100 live births. In the first year of life, African Americans are 1.4 times more likely and Hispanics are 1.7 times more likely to die due to CHD than white people. However, no one knew why race affected those outcomes, writes Allison Trouten of the Medical University of South Carolina.
"We've known for...
Two U.S. warships are passing through the Taiwan Strait, the U.S. Navy has announced.
It is the first such operation to take place since tensions between Taiwan and China increased following a visit by U.S. House Speaker Nancy Pelosi to Taiwan earlier this month.
The U.S. and other western navies have routinely sailed through the strait in recent years.
China reacted to Pelosi's visit by holding military drills in the area.
On Sunday, Taiwan's defence ministry said it detected...
Moderna said it is suing Pfizer and its German partner BioNTech for patent infringement linked to the development of the first COVID-19 vaccines.
The U.S. biotech company is alleging that mRNA technology it developed before the pandemic was copied, the BBC reports.
The lawsuit, which is seeking unspecified financial damages, was filed in the U.S. and Germany.
Pfizer said it was "surprised" by the action and would "vigorously defend" itself against the allegations.
In a statement, Moderna said...
(Foundational Questions Institute) — As the size of modern technology shrinks to the nanoscale, weird quantum effects — such as quantum tunneling, superposition, and entanglement — become prominent.
This opens the door to a new era of quantum technologies, where quantum effects can be exploited. Many everyday technologies make use of feedback control routinely; an important example is the pacemaker, which must monitor the user's heartbeat and apply electrical signals to control it, only when...
South Korea has again recorded the world's lowest fertility rate with the number sinking to a new low.
The rate in the country first dropped lower than one child per woman in 2018.
On Wednesday, figures released by the government showed the figure had dropped to 0.81 — down three points from the previous year, and a sixth consecutive decline, reports the BBC.
In comparison, the average rate across the world's most advanced economies is 1.6 children.
Countries...
U.S. President Joe Biden is cancelling billions of dollars of federal student loans. But what difference will it make?
On Wednesday, Biden announced he will cancel up to $10,000 in federal student loans for millions of Americans who earn less than $125,000 each year, the BBC reports.
Biden will also forgive $20,000 of debt for students on Pell Grants, which applies to those in greatest financial need.
The news, political analysts have suggested, was announced to drum...
An experimental discovery of a fundamental physical phenomenon is not something that happens often. Yet this is what Skoltech researchers and their European colleagues recently managed to do.
In their paper in Nature, they report the experimental demonstration of the so-called AC coherent quantum phase-slip effect. It holds promise comparable to that of the Josephson effect, which underlies the present-day standard of voltage and ultrasensitive magnetic field sensors.
The AC coherent quantum phase-slip effect manifests itself as a...
