Art & History

Prehistoric Art

When we visit art galleries or learn about art in school, we tend to think of paintings on canvas, sculpture or photographs.  Often these will be clearly recognisable as people or objects like food and flowers, and we can relate to them as familiar in some way.
Art and pictures have been around ever since people first were recognised as human by historians, in pre-historic times.  Prehistoric simply means history which dates before written accounts are available to study.  The earliest humans did not have writing with which they could communicate and this means that art and pictures were even more important to them.

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Home, Health & Style

Second Hand – Or Vintage Clothing?

“Euuuuw, that is second hand!”  – if you have ever said this, then you could be missing out. Vintage clothing is popular at the moment, because they’re well made, different to the things on sale in the shops and pretty cool!
Sally Anne tells you how to find and look after vintage clothing and how to accessories them.

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Sports

Stories From The Stables – Sam

This is first of a series of Stories From The Stables, by Carolyn Ward.
I fell off, honest 

Learning to ride is a fabulous hobby.  It can be pricey, but you can borrow a hat and crop from most stables, and start off in trousers and strong shoes.  It is great exercise, very exciting, and teaches respect for animals, balance, and correct posture.

When I was very young I rode at Stourton Stables, a children’s riding school where the ponies were mostly grumpy and had to be separated in the fields for fear of kicking each other to pieces.

Oh, happy riding lesson days. Hours spent in icy pouring rain, in snow, in fog, and even more rarely; in lovely sunshine.  The best riding times of year for me were spring and autumn, before and after the major insect season.

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Art & History

Who Invented the First Electric Battery?

voltage level sign

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?

inventor of first electric battery

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

Volta's Voltaic Pile, the first electric batteryThis 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

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.

 

 

 

 

Featured Image by Thomas Kelley on Unsplash

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