Category archives: Technology

MI weekly selection #68

MI weekly selection #68

Humanities & Social SciencesScienceTechnologyWeekly Selection

By César Tomé

Salamanders may be getting shorter due to climate change Appalachian salamanders have gotten shorter in the past 50 years, possibly adapting to warmer, drier weather conditions. Researchers compared specimens they collected with those collected by museums from the same areas since 1957. They found that each generation of salamanders in several species grew 1% smaller […]

MI weekly selection #65

MI weekly selection #65

Humanities & Social SciencesScienceTechnologyWeekly Selection

By César Tomé

Lone gene determines wing mimicry in butterflies One gene can determine the wing patterns of female swallowtail butterflies, making them resemble a different, and toxic, butterfly species, according to a study published in Nature. The finding adds to the debate over mimicry and how it helps put off would-be predators. A team of evolutionary biologists […]

Superparamagnetic nanoparticles and the separation problem

Superparamagnetic nanoparticles and the separation problem

MaterialsPhysics

By Silvia Román

It has been a long time since we have learned that “going nano” leads to new properties arising from matter. One of those size-dependent properties that promises huge benefits due to its potential applications is magnetism. Magnetic materials are classified according to their susceptibility to magnetic fields into diamagnetic, paramagnetic and ferromagnetic materials, the first […]

MI weekly selection #64

MI weekly selection #64

Humanities & Social SciencesScienceTechnologyWeekly Selection

By César Tomé

The beringia standstill hypothesis A review of genetic evidence suggests that the Native American founding population lived in Beringia for thousands of years before migrating south into North America. And sediments taken from the Bering Sea show that at the time, the region also had woody plants for building fires, and grassland steppes where woolly […]

MI weekly selection #63

MI weekly selection #63

Humanities & Social SciencesScienceTechnologyWeekly Selection

By César Tomé

Beluga whales infected with cat parasites Parasites known to infect cats have been discovered in Arctic beluga whales. Toxoplasma gondii can cause people to go blind. Scientists have issued a health advisory for those in the Western Arctic region who eat beluga meat. BBC News Higgs boson bubbles sent shock waves throughout nascent universe Bubbles […]

MI weekly selection #62

MI weekly selection #62

Humanities & Social SciencesScienceTechnologyWeekly Selection

By César Tomé

Mesozoic-era ichthyosaur had live births on land The fossil remains of a 248 million-year-old ichthyosaur have revealed that the Mesozoic-era reptile died while giving birth with two offspring still inside it. Scientists were surprised to note that the birth was occurring on land, which goes against a long-held belief that the sea creatures delivered their […]

MI weekly selection #61

MI weekly selection #61

Humanities & Social SciencesScienceTechnologyWeekly Selection

By César Tomé

Highly conductive graphene nanoribbons Graphene nanoribbons can conduct electricity much better than was expected. The new graphene nanoribbons differ from other forms by having no rough edges allowing electrons to move ten times more swiftly than theory says they should. The results could have implications in the development of high-end electronics. Nature News Advanced bionic […]