A team of MIT researchers have observed that when salty water evaporates from a heated, superhydrophobic surface the crystal structures that form can easily be removed or roll away on their own.
This phenomenon could make it possible to use brackish or salty water, without any pretreatment, rather than relying on freshwater sources, for cooling systems in power plants.
Clashes between Ukrainian forces and Russia-backed separatists continued after Moscow’s large-scale military maneuvers at the border. WSJ’s Georgi Kantchev reports from the front line of a conflict that is seen as a test for the Biden administration. Photo: Anastasia Vlasova for The Wall Street Journal
A growing number of colleges around the country will require students to get Covid-19 vaccinations before returning to campus. But the policies are igniting a debate over whether businesses and institutions like schools can make vaccines a condition of attendance. Photo: Northeastern University
To balance their budgets during the coronavirus pandemic, states including New Jersey and New York have raised taxes on the wealthy. Conservatives warn that it will cause many of those who left at the onset of the pandemic make those moves permanent since they’re no longer bound to the physical locations of their offices or their children’s schools. But available data from 2020 show that the so-called exodus wasn’t as pronounced as initially projected, and the urban exit that did happen, was to suburbs rather than low tax states.
It is hard to predict what the electric automotive future holds for us, but we say can one thing for sure: never again will the car designs be boring. To prove this statement, today we will cover the latest EV news and showcase the most prominent newcomers that not only have revolutionary propulsion systems, but also radical inside-out looks.
With global temperatures rising the threat of a climate crisis has never been closer. From carbon capture to driverless cars, these cutting-edge technologies have the promise to help us fight the impending climate crisis.
As more U.S. adults get their Covid-19 vaccines, a variety of side effects are emerging. WSJ’s Daniela Hernandez speaks with an infectious disease specialist on what is common, what isn’t and when to seek medical attention. Photo: Associated Press
He identifies a cluster of non-medical drivers of deadly outbreaks—war, political instability, human migration, poverty, urbanization, anti-science and nationalist sentiment, and climate change—and maintains that advances in biomedicine must be accompanied by concerted action on these geopolitical matters.
War and Pestilence ride together as two of the Four Horsemen of the Apocalypse, and there is no shortage of historical precedent to demonstrate the aptness of the allegory. The great influenza pandemic that began in 1918 was propelled, in part, by troop movements and population shifts at the end of the First World War. Both the First and the Second World Wars produced typhus epidemics. Armed conflicts cause malnutrition, poor pest control, and sanitation problems; even the soil often becomes contaminated. Medical facilities are destroyed; doctors and nurses, diverted to combat duty, are unable to provide care, and vaccination and other mass-treatment programs usually falter.
The self-supporting structures that snap into place, and how a ban on fossil-fuel funding could entrench poverty in sub-Saharan Africa.
In this episode:
00:45 Self-supporting, foldable structures
Drawing inspiration from the art of origami, a team of researchers have demonstrated a way to design self-supporting structures that lock into place after being inflated. The team hope that this technique could be used to create arches and emergency shelters that can be quickly unfolded from flat with minimal input.
Research Article: Melancon et al.
News and Views: Large-scale origami locks into place under pressure
Video: Origami-inspired structures could be deployed in disaster zones
07:32 Research Highlights
Nocturnal fluctuations cause scientists to underestimate rivers’ carbon emissions, and the ‘island rule’ of animal size-change is seen around the world.
Research Highlight: Rivers give off stealth carbon at night
Research Highlight: Animals around the world follow the ‘island rule’ to a curious fate
09:55 Banning fossil-fuel funding will not alleviate poverty
A ban by wealthy nations on the funding of overseas fossil-fuel projects would do little to reduce the world’s climate emissions and much to entrench poverty in sub-Saharan Africa, argues economist Vijaya Ramachandran.
World View: Blanket bans on fossil-fuel funds will entrench poverty
17:17 Briefing Chat
We discuss some highlights from the Nature Briefing. This time, the first powered flight on another world, and estimating how many Tyrannosaurus rex ever lived.
News: Lift off! First flight on Mars launches new way to explore worlds
Video: Flying a helicopter on Mars: NASA’s Ingenuity
News: How many T. rex ever existed? Calculation of dinosaur’s abundance offers an answer
Airtags: The size of Mentos or a Lifesaver? A redesigned super-slim iMac? Lost-item trackers called AirTags? An Apple TV remote that doesn’t suck? New iPad Pros with M1 chips? Apple announced a hodgepodge of updates at a spring event. WSJ’s Joanna Stern has the rundown. Photo Illustration: Adele Morgan
Boomers Daily 