7 May is International Radio and Television Day. It was on this date in 1895 that Eng. Alexander Popov presented a device for transmitting and receiving electrical oscillations from distances without a wire.
The apparatus made it possible to receive radio signals carrying information by means of radio waves and opened the way to the creation of other radio devices enabling practical use of radio waves.
From one hall of the university building, Popov sent to another hall the words "Heinrich Hertz", which was transcribed on the blackboard by the President of Physical and Chemical Society.
The BNT congratulates all colleagues on the occasion!
Bulgaria Marks National Day of Salvation in Memory of Those Who Died Saving Lives
Bulgarian Orthodox Church Celebrates the Great Christian Feast of the Assumption of the Virgin Mary
Representatives of Bulgaria's Foreign Ministry Spoke with Iva Mihaylova's Mother After Another Court Refusal to Allow Her to Leave North Macedonia for Medical Treatment
Ruse–Varna Road Closed after Crash Involving Two Cars and a Minibus, One Person Killed
Община Струмяни: Осигурена е достатъчно бутилирана и питейна вода за жителите, доброволците и екипите на терен
Повече от 700 делегати от всички структури на ГЕРБ се събраха на Национално събрание на партията
Чуй новините
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