Being an expat is not the easiest thing in the world, but it’s certainly is one of the most interesting and enriching experiences one can have. Alexia moved from Athens to London in September 2012, and is still trying to figure out expat life, armed with optimism, patience and lots of enthusiasm. She explains how she finds life… here and there.
Here: I meet new people all the time and develop great friendships with people from all over the world. I’m more open socially than I was back home.
There: Although I miss them terribly, I’m so happy every time I go back home and see my old good friends and my family. Every reunion is filled with lots of hugs and happiness.
Have you ever thought about the people who make movies? Did you know that less that 20% of the main decision making positions in the media are held by women? This obviously affects the way that women and girls are portrayed on screen.
With media platforms like YouTube or Vimeo, its easier to get friends together and write, direct, edit your own shows and distribute them for the world to see, but where do you start? How can you make a movie? One way is to take part in a Apple Camp – check the link to see if there is one in your area.
Once you have been making films for a while, you may want to learn more about how movies are made, and how to put them together. A new venture in California aims to help girls do this – on a one week camp.
Our contributor Annie May had a chat with Esther from Camp Reel to find out more.
When we talk about electric batteries, we often talk about voltage. But did you know that this word is named after the person who invented the first electric battery? First, let’s take a look at what a volt is, and then we’ll find out more about the guy who gave the ‘volt’ its name.
What is a Volt?
A volt is defined as a unit of electric potential and electromotive force, and voltage refers to the number of those units. That sounds a lot more complicated than it is! If you think of the water in a tap being like the electricity running through a wire, the voltage means the amount of pressure. This video is quite long but explains it very well.
Why are Volts Called Volts?
Alessandro Volta
The term actually comes from a name. It was coined in honour of Italian physicist Alessandro Volta, who is recognised as the inventor of the first electric battery. During the 1790s, Volta worked on the theories of electricity of the day.
Volta disagreed with the theory proposed by fellow Italian scientist Galvani that electricity was generated by animal tissue. Instead of experimenting on frogs or other animals, Volta did experiment after experiment with metals.
His persistence paid off, and in 1800, he invented the world’s first battery, known as the ‘voltaic pile’.
The Voltaic Pile
This voltaic pile was simple but ingenious. It consisted of a pile of zinc and silver discs. But alternating between them was a piece of cardboard, or a piece of cloth, that had been soaked in saltwater.
There was a wire that connected the zinc disc on the bottom to the silver disc on the top, and this wire was capable of producing sparks.
What else Did Volta Invent?
The invention of the first electric battery brought Volta the most fame and recognition, but he also made other discoveries. He invented the electrophorus, a device that could transfer an electrical charge to other objects, as well as an electrical condensor, and the voltaic cell.
He is also known for having discovered and isolated methane gas. After his death, the volt and voltage were named in his memory.
What about Galvani?
Luigi Galvani
Yet there is one more twist to the tale. Volta’s longstanding colleague Galvani of the animal electricity theory also left his name in our language. When we say ‘galvanise’ or ‘galvanism’, that is where it comes from.
Despite their differing theories, there was no rivalry between the two scientists. They were both more concerned with the pursuit of knowledge than with whose theory would prove to be right, and it was Volta who first coined the word ‘galvanismo’ in Italian.
Recently our editor Lynn visited Dare To Be Digital, a games fair in Dundee to find out a bit about gaming, and how kids can get involved. This week we will feature tips from successful women in the games industry, and information about where to start looking at a career in games, starting today with a feature on how to create your own video game.
For years black holes have captured the imagination of the public as well as physicists, featuring heavily in science-fiction books and films. But now it seems that they may not exist after all.
