gps navigation system | scienceinfo.net

China is about to have a more accurate GPS navigation system than the United States
The last satellite to complete China's BeiDou navigation system will be launched into orbit later this month.
'Duck' robot helps Japanese farmers to kill grass without chemicals
Robot Aigamo simulates the duck's natural activity, thereby helping farmers to destroy weeds, protect crops without using chemicals.
SpaceX's Falcon 9 rocket punctured the Earth's ionosphere
Recently, scientists have discovered the Earth's ionosphere appears a giant hole with a diameter of up to 900km, an area of 1.77 million km2.
The most expensive cosmic projects on the planet
The desire to conquer the universe is always endless, despite the huge cost of serving great works in space.
The earth 'stirred' under the influence of the earthquake in Nepal
The worst earthquake in Nepal's history since 1934 has caused the Earth to deviate greatly.
The car stops if drunk drunk
A group of students in Mexico develops a car-mounted system that automatically stops the car if it detects high levels of alcohol in the driver's blood.
How the GPS system works
GPS is a global positioning system designed, built, operated and managed by the US Department of Defense.
The world's first flying car officially came into use
The kind of dreaming vehicle with the ability to operate both on roads and air has become a reality and comes into use. It is the car flying Transition Terrafugia.