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)
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)