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City Types: Aerotropolis | Rashid s Blog: An Educational Portal

Since the establishment of the first city/town, they have come a long way. There are various types of cities. Aerotropolis is a relatively new type. We have come a long ways from kinship society to tributary society to the modern city. There are many bases for classifying a city. Sometimes we classify a city on…

The future of air combat is drones launching more drones

The future of air combat is drones launching more drones Kelsey D. Atherton © Provided by Popular Science The future of air combat is drones launching more drones On March 26, a windowless drone called the Valkyrie opened its weapon bay doors, the first time it had done so while airborne. Then, it released into the sky below not a bomb, but another, smaller drone, a scout launched into flight from its mid-air berth. Deployed from a mothership into flight, the drone-launched drone ushers in an era of machines sending other machines to fight battles for humans.   The XQ-58A Valkyrie drone, with a 28-feet length and 22-foot wingspan, was on its sixth test flight at the Yuma Proving Ground in Arizona. The Valkyrie has flown over the Sonoran desert around Yuma since 2019, it s dark gray body stark against the sun-scorched sands below. The smaller drone, the payload released from the Valkyrie weapons bay, was an ALTIUS-600. Altogether, the package suggests that t

Countries resume use of the AstraZeneca vaccine after new data shows it s safe

Countries resume use of the AstraZeneca vaccine after new data shows it s safe
msn.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from msn.com Daily Mail and Mail on Sunday newspapers.

The Army put fitness trackers on paratroopers in Alaska to fine-tune its training

The Army put fitness trackers on paratroopers in Alaska to fine-tune its training Rob Verger © Provided by Popular Science The study includes around 900 paratroopers in the Spartan brigade. The airborne Army brigade known as the Spartans is based in Anchorage, Alaska. “We jump out of pretty much anything that flies,” says Phil Rank, chief warrant officer with the light infantry brigade. “If it can get in the air, we can get out of it.” Being a paratrooper in the Army and jumping out of perfectly good airplanes carries with it its own stressors, but the unit’s northern location adds an extra layer. “We don’t have the consistency of light like you do in the lower 48,” Rank observes. “We go through extreme periods of daylight, and extreme periods of darkness.”

Long-term COVID-19 symptoms are even more common than we thought

Long-term COVID-19 symptoms are even more common than we thought
msn.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from msn.com Daily Mail and Mail on Sunday newspapers.

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