Novice - Znanost (angleščina)

Cannabis vaping liquids contain lead and other toxic metals
19. March 2024 (10:00)
The heating elements in vapes can release toxic metals. Now an analysis of cannabis vaping liquids shows metals like lead are present at dangerous levels – even before the vape is used (New Scientist)
Intermittent fasting linked to a higher risk of heart disease death
18. March 2024 (21:00)
Only eating within an 8-hour window is associated with a significantly higher risk of heart disease-related death compared with eating over 12 to 16 hours (New Scientist)
Blood-clotting drug derived from pigs can now be made synthetically
18. March 2024 (20:00)
A common anti-clotting drug called heparin is made from pig intestines, which risks contaminations and infections. A safer, synthetic version has now been developed but its production needs scaling up (New Scientist)
Mammoth carcass was scavenged by ancient humans and sabre-toothed cats
18. March 2024 (17:00)
A southern mammoth skeleton found in Spain bears cut marks from stone tools and bite marks from carnivore teeth, suggesting that both hominins and felids feasted on its meat (New Scientist)
Titan’s sand dunes may be made of smashed up small moons
18. March 2024 (12:00)
The sand dunes that splay across the surface of Saturn’s moon Titan may be made of the ground-up remains of ancient irregular moons, rather than atmospheric particles (New Scientist)
Mathematicians plan computer proof of Fermat's last theorem
18. March 2024 (11:00)
Fermat's last theorem puzzled mathematicians for centuries until it was finally proven in 1993. Now, researchers want to create a version of the proof that can be formally checked by a computer for any errors in logic (New Scientist)
Gold flecks make super-transparent glass fully opaque from one side
15. March 2024 (19:00)
A glare-free window that is opaque from the outside but still offers a clear view from inside could be made with a coating using billions of tiny bits of gold (New Scientist)
Miniature furniture 3D printed using ink made from recycled wood
15. March 2024 (19:00)
Waste wood can be reconstituted into a form that can be 3D printed and used to produce furniture or other objects (New Scientist)
Perfectly straight ridges may cover the poles of Saturn’s moon Titan
15. March 2024 (16:00)
Saturn’s moon Titan may have hundreds of strange ridges called yardangs that could teach us how the icy moon’s geology and conditions vary across its surface (New Scientist)
Single mathematical model governs primate brain shape across species
15. March 2024 (15:00)
An analysis of primate brains shows that the pattern of folds on the surface follows the same mathematical pattern across species (New Scientist)