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Phys.org / Why Aristotle would hate Valentine's Day, and his five steps to love

Valentine's Day is traditionally a time of heart-shaped balloons, overpriced roses and fully booked restaurants. Couples kiss and hold hands, smiling selfies celebrate a day of public displays of devotion.

10 minutes ago in Other Sciences
Medical Xpress / No association between mRNA COVID-19 vaccination during pregnancy and autism in children, new research shows

The mRNA COVID-19 vaccine is not associated with autism or other neurodevelopmental problems in children whose mothers received the vaccine immediately before or during pregnancy, according to new research presented today ...

59 minutes ago in Vaccination
Phys.org / Green or not, US energy future depends on Native nations

The Trump administration's drive to increase domestic production of fossil fuels and mining of key minerals likely cannot be accomplished without a key constituency: Native nations.

9 minutes ago in Earth
Phys.org / How a tiny shrimp could hold the clue to better armor

Modern armor systems do not do a good enough job of protecting humans from blast-induced neurotrauma (brain and eye damage). To improve them, we may have to look to nature. In particular, a tiny shrimp that is able to protect ...

1 hour ago in Biology
Phys.org / Ammonia leaks can be spotted in under two seconds using new alveoli-inspired droplet sensor

Researchers from Guangxi University, China have developed a new gas sensor that detects ammonia with a record speed of 1.4 seconds. The sensor's design mimics the structure of alveoli—the tiny air sacs in human lungs—while ...

1 hour ago in Chemistry
Phys.org / A new way to 'cage' plutonium

Plutonium (Pu) exhibits one of the most diverse and complex chemistries of any element in the periodic table. Since its discovery in 1940, scientists have synthesized and studied many different types of plutonium-containing ...

1 hour ago in Chemistry
Phys.org / New experiments suggest Earth's core contains up to 45 oceans' worth of hydrogen

Scientists have long known that Earth's core is mostly made of iron, but the density is not high enough for it to be pure iron, meaning lighter elements exist in the core, as well. In particular, it's suspected to be a major ...

2 hours ago in Earth
Phys.org / Strike against mask wearing in 1930s echoed COVID-19 protests, study finds

New research from The University of Manchester has shown that debates and resistance about wearing face masks go back a lot further than the COVID-19 pandemic. Dr. Meng Zhang, a Wellcome Trust Research Fellow at the University's ...

1 hour ago in Other Sciences
Tech Xplore / Toward regenerative bioprinting: Magnetic mixer enables scalable manufacturing of 3D-printed tissues

3D bioprinting, in which living tissues are printed with cells mixed into soft hydrogels, or "bio-inks," is widely used in the field of bioengineering for modeling or replacing the tissues in our bodies. The print quality ...

1 hour ago in Engineering
Phys.org / The origin of magic numbers: Why some atomic nuclei are unusually stable

For the first time, physicists have developed a model that explains the origins of unusually stable magic nuclei based directly on the interactions between their protons and neutrons. Published in Physical Review Letters, ...

5 hours ago in Physics
Phys.org / NOvA maps neutrino oscillations over 500 miles with 10 years of data

Neutrinos are very small, neutral subatomic particles that rarely interact with ordinary matter and are thus sometimes referred to as ghost particles. There are three known types (i.e., flavors) of neutrinos, dubbed muon, ...

5 hours ago in Physics
Phys.org / Subaru observations suggest an intrinsic gap in NGC 5466's tidal stream

Astronomers from the National Astronomical Observatory of Japan (NAOJ) and elsewhere have used the Subaru Telescope to perform deep imaging observations of a distant globular cluster known as NGC 5466. The observational campaign ...

5 hours ago in Astronomy & Space