Scientists at NASA's Jet Propulsion Laboratory have published new findings showing Earth's center of mass constantly shifts by several millimeters each season, a phenomenon that could affect the satellite systems modern shipping and agriculture depend on. A team led by Dr. Donald Argus developed a new ultraprecise satellite tracking technique to measure how water, ice, […] The post NASA study finds Earth's center of mass shifts with the seasons, raising questions about navigation accuracy appeared first on American Almanac .
Scientists at NASA's Jet Propulsion Laboratory have published new findings showing Earth's center of mass constantly shifts by several millimeters each season, a phenomenon that could affect the satellite systems modern shipping and agriculture depend on. A team led by Dr. Donald Argus developed a new ultraprecise satellite tracking technique to measure how water, ice, and air redistribute across the planet throughout the year, tugging Earth's center of mass in different directions month by month. The study, published in the Geophysical Journal International, maps a seasonal cycle that swings the planet's mass center toward the North Pole in winter and toward South America in spring, shifts measured in millimeters but large enough to…Open
A mapping app that most Americans forgot existed a decade ago just rocketed to the top of the Apple App Store, all because it refused to rename Lake Ontario on its maps after President Trump's executive order. MapQuest, the Denver-based navigation service launched in 1996, posted three words on social media the same day Trump […] The post MapQuest rides Lake Ontario defiance to No. 1 on the App Store appeared first on American Almanac .
A mapping app that most Americans forgot existed a decade ago just rocketed to the top of the Apple App Store, all because it refused to rename Lake Ontario on its maps after President Trump's executive order. MapQuest, the Denver-based navigation service launched in 1996, posted three words on social media the same day Trump signed the order on Aug. 27: "We're not changing it." Within days, hundreds of thousands of users downloaded the app, pushing it past ChatGPT for the No. 1 free spot on Apple's platform. Usage surged to roughly fifty times its normal rate, the company said in a Monday press release. The episode is a small but telling snapshot of how a culture-war flashpoint, in this case, a presidential directive to rebrand a body…Open
SUBSCRIBE to the channel for more vids Summary: A massive subglacial river system has been mapped beneath the Antarctic ice sheet. See how modern radar technology reveals this complex landscape. Researchers recently utilized ice penetrating radar to survey 32,000 square kilometers of the eastern Antarctic ice sheet. This detailed mapping identifies a river network spanning nearly 1,000 miles, fundamentally changing our understanding of what lies beneath the surface. This video is for anyone interested in geology, glaciology, or the latest scientific discoveries regarding the Antarctic ice sheet. By analyzing these new surveys, we can better comprehend the stability and behavior of the ice. The data confirms a surprisingly complex…
