Early space travellers were younger men, but the average age has risen since the 1960s. More women are also now going to space, but they only make up 64 of the 566 to have left Earth Source: https://www.newscientist.com/article/2254897-most-space-travellers-are-men-despite-slow-rise-in-female-astronauts/?utm_campaign=RSS%7CNSNS&utm_source=NSNS&utm_medium=RSS&utm_content=home…
Tag: make up
Curiosity: Summer approaches in Gale crater
Mars is often a very dynamic place due to its atmosphere and how it interacts with the surface. At present, we’re in the “windy season” in Gale crater. This means that we’re seeing increased aeolian (meaning “related to the wind”) activity at the surface. In recent sols, we’ve taken Mastcam images of the same surface ripples on multiple sols. We’ve been…
Smart Dust Is Coming. Are You Ready?
“Imagine a world where wireless devices are as small as a grain of salt,” writes futurist Bernard Marr in Forbes, describing a technology being researched by companies like IBM, General Electric, and Cisco. “These miniaturized devices have sensors, cameras and communication mechanisms to transmit the data they collect back to a base in order to process. “Today, you no longer have…
First Covid-19 Reinfection Has Been Documented
phalse phace writes: Researchers in Hong Kong on Monday reported what appears to be the first confirmed case of Covid-19 reinfection, a 33-year-old man who was first infected by SARS-CoV-2 in late March and then, four and a half months later, seemingly contracted the virus again while traveling in Europe. The case raises questions about the durability of immune protection from…
Chromium’s DNS-Hijacking Tests Accused of Causing Half of All Root Queries
ZDNet reports:
In an effort to detect whether a network will hijack DNS queries, Google’s Chrome browser and its Chromium-based brethren randomly conjures up three domain names between 7 and 15 characters to test, and if the response of two domains returns the same IP, the browser believes the network is capturing and redirecting nonexistent domain requests. This test is completed on…
This day in 2013: The Day the Earth Smiled
Today is the anniversary of The Day the Earth Smiled, the 3rd-ever image of Earth from the outer solar system, taken by the great Cassini spacecraft on July 19, 2013. Source: https://earthsky.org/space/the-day-earth-smiled-2013-cassini-image-of-earth-moon-planets…
Physicists say they’ve found a ‘tetraquark’
On July 1, scientists announced the discovery of a new exotic particle – a so-called “tetraquark” – a finding that marks a major breakthrough in a search of almost 20 years, carried out in particle physics labs all over the world. Source: https://earthsky.org/human-world/cern-physicists-discovery-new-particle-tetraquark…
The Uncertain Future of Ham Radio
Julianne Pepitone from IEEE Spectrum writes about the uncertain future of ham radio. An anonymous reader shares an excerpt: Will the amateur airwaves fall silent? Since the dawn of radio, amateur operators — hams — have transmitted on tenaciously guarded slices of spectrum. Electronic engineering has benefited tremendously from their activity, from the level of the individual engineer to the entire…
Portland Approves 10% Cap On Fees That Food Delivery Apps Can Charge Restuarants
An anonymous reader quotes a report from Oregon Live: The Portland City Council voted unanimously Wednesday to make it illegal for third-party food delivery services like DoorDash and Grubhub to collect more than 10% in commission fees from city restaurants amid the coronavirus pandemic. Portland joins other cities, including Seattle, Los Angeles and Philadelphia, that have instituted similar caps in recent…
Use the Big Dipper to find Polaris
Draw a line through the Big Dipper pointer stars to find Polaris, Earth’s northern pole star. If your sky is dark, also look for a former pole star, Thuban. Source: https://earthsky.org/tonight/big-dipper-points-to-polaris-aids-in-finding-thuban-2…