Timbuktu is a city in Mali, situated 20 km (12 mi) north of the Niger River. The town is the capital of the Timbuktu Region, one of the eight administrative regions of Mali.
Motorola was the first company to produce a handheld mobile phone.
On April 3, 1973, Martin Cooper, a Motorola researcher and executive, made the first mobile telephone call from handheld subscriber equipment, placing a call to Dr. Joel S. Engel of Bell Labs, his rival.
On June 26, 1954, at Obninsk, Russia, the nuclear power plant APS-1 with a net electrical output of 5 MW was connected to the power grid, the world’s first nuclear power plant that generated electricity for commercial use.
Boron deficiency affects vegetative and reproductive growth of plants resulting in inhibition of cell expansion, death of meristem and reduced fertility. Plants contain B both in a water-soluble and insoluble form.
