Covid 19 coronavirus: Europe threatens to seize vaccine factories
17 Mar, 2021 08:51 PM
4 minutes to read
By: Ben Graham
Europe is in the midst of its crisis of the century as it threatens to seize AstraZeneca factories and strip the company of its intellectual property rights in a major escalation in tensions over coronavirus vaccines.
European Commission president Ursula von der Leyen refused to rule out the moves overnight, saying all options are on the table as the bloc struggles to vaccinate its 450 million citizens amid a third Covid-19 wave. We are in the crisis of the century. I m not ruling out anything for now because we have to make sure that Europeans are vaccinated as soon as possible. Human lives, civil liberties and also the prosperity of our economy are dependent on the speed of vaccinations.
Researchers reveal the extent to which rivers across the country are losing flow to aquifers
By Harrison Tasoff
Leaky rivers are more widespread than scientists had thought.
Water is an ephemeral thing. It can emerge from an isolated spring, as if by magic, to birth a babbling brook. It can also course through a mighty river, seeping into the soil until all that remains downstream is a shady arroyo, the nearby trees offering the only hint of where the water has gone.
The interplay between surface water and groundwater is often overlooked by those who use this vital resource due to the difficulty of studying it. Assistant professors Scott Jasechko and Debra Perrone, of UC Santa Barbara, and their colleagues leveraged their enormous database of groundwater measurements to investigate the interaction between these related resources. Their results, published in Nature, indicate that many more rivers across the United States may be leaking water into the ground than previously realiz
Visitors attending the 2020 Archibald Prize Regional Tour at Tweed Regional Gallery. Visitors viewing the portrait of Behrouz Boochani by artist Angus.
SCIENCEALERT STAFF
Pi (π) is a constant describing the ratio between a circle s circumference and its diameter. It is an irrational number usually summarized to two decimal places as 3.14.
The Greek letter for P was chosen by the 18th century Welsh mathematics teacher William Jones, most likely to stand for periphery .
Symbolically, the term pi was chosen to stand for something more than a mere number. Prior to its use in the early 18th century, the quantity was represented by terms and fractions, none of which adequately reflected an incomprehensible, infinitely long sequence of non-repeating decimals.
Jones might have suspected that the exact proportion between the diameter and the circumference can never be expressed in numbers , but it wasn t until the 1760s that the Swiss polymath Johann Lambert came up with a proof of its irrationality.