What is The Point in Learning Maths?
Have you ever sat in a Maths class wondering when you will ever need to do long division without a calculator? Or silently cursed your Geography teacher while learning about the formation of oxbow lakes? And History? That’s all in the past and irrelevant, isn’t it?
In this series of articles, we will look at some of the subjects we learn at school, and try and answer the question: What’s the point in learning maths?
Let’s start with Maths. It is a fact of life that while some people are good at Maths, for others it is a daily trial. It is, however, along with English and the sciences the subject considered to be the most important. Why? Of course, we all know that it is important to be able to count, and do simple sums, but when, in real life, do we actually use it?
What is The Point in Learning Biology?
Last time we looked at uses of English, both in day-to-day life and in careers. Today we will focus on Biology – the study of life and living organisms in more detail that you could ever think necessary. So how is Biology useful in our day to day lives? How can we put the skills learned in Biology to use?
Here is where to find BIOLOGY … every day and everywhere
Who Invented the First Electric Battery?
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.
Featured Image by Thomas Kelley on Unsplash
Does Atlantis Exist, and Where Does the Name Originate?
Around 350 BC, the Greek philosopher Plato wrote about an island situated in front of the Pillars of Hercules, that disappeared under the sea in one day and one night. According to Plato, the capital of Atlantis was built on a hill and surrounded by rings of water, which were joined by tunnels large enough for a ship to sail through. A huge canal connected the outer rings of water to the ocean.
The possible existence of the island of Atlantis has intrigued scholars and scientists over the centuries.
In 1800s a man called Ignatius Donnelly wrote a bestselling book called Atlantis, the Antediluvian World. After studying flood history, Ignatius put forward the suggestion that Atlantis was not fiction, but the recording of a natural disaster.
Most modern academics insist that Plato created the story, and was perhaps inspired by events that happened during his lifetime, but that the island never existed.
The subject of dreams, of magical tales and many a search, Atlantis has long captured our imagination. But where did all of this spring from?