在二十余年的服务中，北京视宝累计提供上亿平方公里的卫星影像。通过长期的培训及技术研讨活动，助力中国用户使用并普及最新的对地观测技术，并为自然资源部、交通部、海洋局、农业与农村部、水利部等部门主导的多个国家级大项目提供数据服务。
1852: German physicist Heinrich Magnus describes the Magnus impact, which explains why spinning soccer and tennis balls curve in the air.
It had been also the mothership For lots of X-airplane investigation aircraft, together with Glamorous Glennis, the Bell X-one that Chuck Yeager used to be the 1st to fly from the audio barrier.
April 17: A Senate panel hears from a Boeing whistleblower as well as other critics who accuse the corporation of punishing or sidelining criticism and downplaying complications.
You could get a CO2 take a look at as a Portion of a metabolic panel. A metabolic panel is a bunch of assessments that evaluate electrolytes and blood gasses.
A tricycle gear aircraft is really a type of aircraft having a tricycle trend mounted landing gear. The arrangement provides a nose wheel in advance and two additional in the leading wheels. They're light-weight and acknowledged to get greater floor visibility and so are surprisingly easy to take on and off.
Science of swimming: Lots of the concepts that apply to going from the air also utilize if you're transferring by means of drinking water.
1880s: Osborne Reynolds notes the difference between laminar and turbulent flow. An idea called the Reynolds quantity is used to explain and explain unique varieties of fluid movement.
Aerodynamics matters for the rest of us way too. If you're a keen bike owner and you ought to win a race, you must make use of your Electrical power as effectively achievable, shedding as minor to the air as you'll be able to.
Technically, there will be some loss over the constriction, but to get a simplified process in which you don’t have to account for viscosity, This is certainly an appropriate outcome.
Certainly one of the most important appeals of the aircraft, its iconic type, eventually triggered its obsolescence. The consistently fluid shape meant that no two bulkheads have been the identical.
As A part of its usual features, the human entire body Obviously creates certain acids and bases that harmony each other. Any disruption to this balance can be an early indicator of the fundamental health-related affliction.
The Carbon Management Platform lets companies to manage their CO2 emissions and to take actions to cut back them. Collectively, our operate can elicit the global effect required to battle towards local weather alter.
Gliders are Yet another intriguing style of aircraft that falls underneath the broader classification of unpowered or lighter-than-air traveling machines. aircraft As opposed to airships, gliders depend on the forces of gravity and air currents to realize and maintain flight, with no usage of engines or propulsion systems.