The Japanese company Solar Frontier claims to have set a new world record for the efficiency of thin-film solar cells. Efficiency of a cell of 1 square meter. cm reached 22.9%. 28 December 2017, 10:22 (GIGAMIR)
The main reason for the financial problems of Ukrzaliznytsia is not freight transportation, which remains profitable, but the unprofitability of the passenger segment. Yesterday, 21:16 (Обозреватель)
What are citizens actively investing in?. 01 June 2026, 23:11 (Обозреватель)