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How to Stay Safe at the Beach

Although beaches are fun places they can also be dangerous, and you may have heard some stories in the news lately about people getting into difficulties when they’re in or by the sea. Our science editor Sam Gouldson, who lives on the Sussex coast, shares her tips for beach safety.

Go to a Beach with Lifeguards

Many beaches have lifeguards, who are trained to keep people safe whether they’re on the beach or in the sea. You can find out where these beaches are by searching the Good Beach Guide (for the UK), Irish Water Safety (for Ireland) or the ILSE (for Europe). Find out more about the RNLI Lifeguards in UK here.

Pay Attention to the Flags

Beaches in the UK use a flag system to inform you of possible hazards. If there are red and yellow flags this means that there are lifeguards in that area and that it’s safe to swim.

A black and white chequered flag means that the area is for people using paddleboards, surfboards and kayaks, and that you should not swim there.

A red flag means that the area is dangerous and you should not go into the water for any reason. There may also be information boards and signs at the beach, and you should read these thoroughly.

Stay With Your Group

If you stick with your family or friends you can all keep an eye on each other. Find somewhere distinctive to use as a base while you’re at the beach and agree where you’ll meet up if you get separated.

If there are younger children in your group make sure they’re with a responsible adult or older teen. Some beaches have a wristband scheme so that children can be easily identified and their group members contacted if they wander off; if the beach you’re visiting has one of these schemes, take part.

Learn About the Sea

Different beaches have different conditions. The tide can come in much faster at one beach than at another, and you should always keep an eye on the water and which direction it’s flowing in. You can look up tide tables online so that you’re aware of when the tide is likely to turn and don’t get cut off from the shore.

Some beaches have dangerous features called rip tides, which are strong currents that can quickly sweep you out to sea without warning. Always check with the beach’s lifeguards if there are any areas that you should avoid – many beaches have a noticeboard to inform visitors about the current conditions.

Waves can also be dangerous, depending on how fast the water is moving and how steeply the beach shelves. Some beaches will have sharp rocks or other hazards that may not be clearly visible from the shore. Again, check the lifeguard’s advice before you go into the water.

If the weather is cool, consider wearing a protective suit to keep you warm in the water, as cold water shock can affect your breathing, blood pressure and heart rate.

Be Careful When Using Inflatables

Inflatable toys and beds are designed to be used in swimming pools, not on open water. But if you do use them make sure there is an adult with you and that you’re in the lifeguarded area between the red and yellow flags.

You should stay near the shore and never use inflatables when there are big waves or an windsock is flying; these are signs that the wind is too strong.

Know What to Do If You Get Into Trouble

If you find yourself in difficulties, stay calm. If the water is shallow enough for you to stand, wade through the water instead of trying to swim in it. Raise at least one hand in the air and shout loudly and clearly for help, and don’t try to swim against the tide because you’ll just tire yourself out.

If you have a board or an inflatable hold onto it; not only will it help you stay afloat it will also make you easier for rescuers to spot.

If you see someone who is in trouble in the water, stay calm. Alert the lifeguards, or if you can’t see them call the emergency services on 999 (in the UK) or 112 (anywhere in Europe).

Stay Safe in the Sun

Although the sea can be dangerous, so too can the sun. Always use sunscreen with a sun protection factor (SPF) of at least 30, and re-apply frequently.

Keep your head and shoulders covered, wear sunglasses to protect your eyes and stay in the shade at the hottest part of the day (usually between 11am and 3pm).

For more information read “Why is too much sun bad for you and how does sunscreen work?”.

Art & History

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

Science, Nature and Tech

So You Want to Be A Scientist

“To become a scientist you must first take an enquiring mind, blend it with some passion, sprinkle on some creativity. Mix it up a bit, and squirt it out in big, loud dollops for everyone to see”, is how our contributor Dr Lesley Beeton envisions creating scientists.

Science is not just for geeks and nerds. It’s not only for boys, or girls, who wear glasses. It’s for those of us with freckles and dimples and turned-up noses. Science is for animal lovers, tongue-rollers, bird-watchers, and teddy bear vets everywhere.

Written By You

Cat’s Bats

Cat is 10 years old and has recently moved back from living abroad. She is settling into school in UK and learning to read and write in English (until now she was schooled in French, so it is a bit of a change). Her favourite animals are bats, and here she tells us a bit about them.

Language & Literature, Written By You

My Multilingual Life – Written By You

‘Do you speak English?’

For British and American girls who travel to a different country, that question is often the first sentence we learn.

‘Sprechen Sie Englisch’

‘Parlez-vous Anglais’

‘habla usted Inglés’

‘Вы говорите по-английски’

‘您说英语吗’

What is it like for the estimated two thirds of the world’s population who speak at least two languages? The people who we refer to as ‘bilingual’, if they speak two languages, and sometimes as ‘multilingual’, if they speak more than two languages.

The researcher and writer David Crystal estimates that of the approximately 570 million people in the world who speak English, over 41% are bilingual in English and some other language.

Today’s contributor knows all about speaking more than one language.