Category Archives: Science

‘Fossil’ groundwater’s modern secret

‘Fossil’ groundwater’s modern secret

Media captionJim Kirchner: “Fossil groundwater fell as rain when mastodons still roamed the Earth” The world’s oldest and deepest waters are not immune from contamination, warn scientists. It had been assumed that “fossil” reserves found hundreds of metres underground would be largely untouched by modern water sources. But sampling from some 10,000 wells shows this not to be the case. ...

Read More »

Nasa waits on Cassini radio contact from Saturn

Nasa waits on Cassini radio contact from Saturn

Image copyright NASA/JPL-CALTECH Image caption Artwork: Cassini will run the gap between the planet and the rings on 22 occasions Controllers and scientists must wait until Thursday to hear from Cassini. The probe was due early on Wednesday to make the first of 22 dives in between Saturn’s cloudtops and the inner edge of its spectacular rings. The daredevil flights ...

Read More »

Iceberg ‘doodles’

Iceberg ‘doodles’

Image copyright Atlas of Submarine Glacial Landforms Image caption Ploughmarks formed by unusually flat-bottomed icebergs in the central Barents Sea (Red is 240m water depth; purple is 248m) It is as if a child has been doodling with large coloured crayons. What you see are actually the great gouge marks left on the seafloor when the keel of a giant ...

Read More »

Iceberg ‘doodles’

Iceberg ‘doodles’

Image copyright Atlas of Submarine Glacial Landforms Image caption Ploughmarks formed by unusually flat-bottomed icebergs in the central Barents Sea (Red is 240m water depth; purple is 248m) It is as if a child has been doodling with large coloured crayons. What you see are actually the great gouge marks left on the seafloor when the keel of a giant ...

Read More »

Physics of throwing analysed by scientists

Physics of throwing analysed by scientists

Image copyright SPL Image caption The act of throwing is more complex than you would expect Scientists have calculated the optimal strategy for throwing something accurately – whether it’s a dart or a crumpled-up piece of paper. Researchers at Yale University say the slow-is-more-accurate rule generally applies. In a series of calculations, they looked at the physics behind releasing a ...

Read More »

Physics of throwing analysed by scientists

Physics of throwing analysed by scientists

Image copyright SPL Image caption The act of throwing is more complex than you would expect Scientists have calculated the optimal strategy for throwing something accurately – whether it’s a dart or a crumpled-up piece of paper. Researchers at Yale University say the slow-is-more-accurate rule generally applies. In a series of calculations, they looked at the physics behind releasing a ...

Read More »

Primitive human ‘lived much more recently’

Primitive human ‘lived much more recently’

Image copyright John Hawks Image caption Homo naledi has much in common with early forms of the genus Homo A primitive type of human, once thought to be up to three million years old, actually lived much more recently, a study suggests. The remains of 15 partial skeletons belonging to the species Homo naledi were described in 2015. They were ...

Read More »

Cassini set for first Saturn gap plunge

Cassini set for first Saturn gap plunge

Image copyright NASA/JPL-CALTECH Image caption Artwork: Cassini will run the gap between the planet and the rings on 22 occasions The Cassini probe is about to make the first of 22 dives in between the rings of Saturn and the planet’s atmosphere. The orbits represent the last science-gathering phase of this remarkable mission before it ends in September. Passage through ...

Read More »

Facebook

Get the Facebook Likebox Slider Pro for WordPress