Artwork: How radio waves travel from a transmitter to a receiver. 1) Electrons rush up and down the transmitter, shooting out radio waves. 2) The radio waves travel through the air at the speed of light. 3) When the radio waves hit a receiver, they make electrons vibrate inside it, recreating the original signal.
A glass of port, a fortified wine. Fortified wine is a wine to which a distilled spirit, usually brandy, is added. Many different styles of fortified wine have been developed, including Port, Sherry, Madeira, Marsala, Commandaria wine, and the aromatized wine Vermouth.
In general, the more popular styles are relatively simple and lack the complexity and length required in a good fortified wine. Alcohol allowance is 1 litre of spirits or 2 litres of sparkling or fortified wine plus 2 litres of still wine. Having said that, I do think there should be mention made of that formidable beast - the fortified wine.