Science, Nature and Tech

Why do we get Hiccups?

why do we get hiccups

Everybody gets hiccups (also sometimes spelt ‘hiccoughs’). Even when babies are still in the womb they hiccup, which can feel very odd to their mother! But why do we get them and how can you stop them?

What are Hiccups?

Hiccups are caused by the diaphragm (pronounced DYE-uh-fram). This is a large, dome-shaped muscle that sits at the bottom of your chest cavity, below your lungs. When we breathe in the diaphragm tightens, helping to pull air into the lungs, and when it relaxes it forces the air back out again. Sometimes the diaphragm becomes irritated and instead of tightening smoothly it does it in a jerky way, which makes air suddenly rush into your throat. This air is stopped when it hits the voice box and makes the opening between the vocal cords close very suddenly. This is what produces the sound of the hiccup.

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Art & History

Amazing Libraries and Bookstores Around the World

What do you like about going into a bookstore or library? Is it the smell of the books, or the sight of the different coloured spines, waiting to be pulled from the shelf, so that you can dive in?
We have compiled a list of some of the most amazing libraries and bookstores around the world. Some of them you may have heard of, others are less well-known, but all of them made us smile or gasp in wonder. Which one is your favourite, and which library or bookstore would you add to the list?

 

Real Gabinete Português de Leitura, Rio de Janeiro, Brazil

Real Gabinete Português de Leitura pic by Mathieu Bertrand Struck

Real Gabinete Português de Leitura pic by Mathieu Bertrand Struck

A building so remarkable that this one photo cannot hope to do it justice – more pictures here. This is the largest and most valuable collection of Portuguese literature outside of Portugal. The library was constructed between 1880 and 1887 – the facade was carved out of limestone in Lisbon, Portugal and transported by ship to Rio.

 

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Popular, Science, Nature and Tech

Have you ever wondered…why leaves change colour in autumn?

Autumn is a season of change; the weather gets colder, there’s less daylight and leaves change colour and fall from plants. But why does this happen?

Why Do Plants Have Leaves?

Leaves contain a chemical called chlorophyll (pronounced KLO-ro-fil), which as well as giving them their lovely green colour also helps create food for the plant. The leaves act like tiny solar panels, and use the sun’s energy to convert water (from the ground) and a gas called carbon dioxide (from the air) into sugar and oxygen. This process is called photosynthesis (pronounced foto-SIN-theh-sis), and the sugar is what the plant lives on.

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