her telescopes have diameters of 20 meters at most. Tianma can receive more signals than all of them combined,” Shen said.
Tianma has also played an indispensable role in determining orbits for China’s moon an
d deep space explorations. It will also determine orbits for the country’s first Mars exploration in 2020, Shen said.
The government is tackling illegal disposal of lead-acid fuel cells, w
hich has resulted in pollution and higher health risks. Hou Liqiang reports from Pizhou, Jiangsu.
China is the world’s largest manufacturer of lead-acid batteries, which are widely us
ed to power electric bikes and supply the ignition spark for conventional automobiles.
However, spent batteries, which are officially designated as hazardous waste, are often dispose
d of illegally, squandering large amounts of valuable lead and causing pollution that is costly to remedy.