Science, Nature and Tech

When Two Girls Sent Their Cat into Space

Have you ever let go of a helium-filled balloon and let it soar into the sky? Maybe you’ve even tied a message onto the string, with your contact details and hoped that someone would let you know where it landed when it popped. These awesome girls went a big step further than that. They sent a balloon into SPACE, with a couple of Go-Pro cameras attached, in a really cool science experiment. 

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Travel

Exploring Australia: Specsavers, Sunshine and Sexism

When I found out I was coming to Australia for two weeks, I was so excited. Australia’s completely the other side of the world to my home in Birmingham. I fantasised about what it would be like: kangaroos hopping round, koalas on every corner, barbecues every night. It would be so different to what I’m used to.
But when I got here, the first thing that struck me was how similar everything was. Getting the bus from the airport, I noticed they drive on the same side of the road as us. When I got to the bus station, the first shop I saw was a WH Smiths. In fact, lots of the shops are the same: Specsavers, Zara, Laura Ashley, Vodafone, Starbucks, McDonald’s, KFC. The first night I was here, I was truly adventurous and had tea at Nandos (although it wasn’t as nice as the ones in the UK and they didn’t have my favourite Wild Garlic and Herb sauce) and then went back to the hotel and watched Homes Under the Hammer, Time Team and Coronation Street.

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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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Home, Health & Style

Who Invented Denim Jeans?

If you’re anything like me, you’ll live in denim jeans when you’re not at school– they’re comfy, practical and come in loads of different styles, colours and designs. I’ve also got a denim jacket, which is perfect for throwing on over dresses when it’s cold outside. Even denim gilets come in and out of fashion on a pretty regular basis.
I think it’s pretty safe to say that denim has become something of a wardrobe staple over the years and in fact, I don’t really know what I’d do without it. But jeans haven’t always looked the way they do now and trends have changed a lot over the years.

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