ລິ້ງ ສຳຫລັບເຂົ້າຫາ

logo-print

Bladeless Wind-Power Generator is Friendly to Birds


ລິງໂດຍກົງ

Wind turbines are efficient sources of cheap energy but also a source of concern as their huge spinning blades frequently kill birds and bats. A new type of wind generator developed in Spain offers a creative solution to that problem. VOA’s George Putic reports.

ຕອນຕ່າງໆຂອງເລື້ອງ

ເບິ່ງໝົດທຸກຕອນ
XS
SM
MD
LG