Science, Nature and Tech

How to Clean Water

With poor living conditions and water shortages increasing every year across the world, the question of how to clean water efficiently is becoming ever more important.

Does Everyone Have Clean Water?

When you have clean, safe water available at the turn of a tap it’s very easy to take it for granted. But almost 750 million people don’t have access to clean water; that’s one person from every ten in the world’s population. There are many reasons for this, from poverty to poor management by governments.

But almost 750 million people don’t have access to clean water; that’s one person from every ten in the world’s population. There are many reasons for this, from poverty to poor management by governments.

There are many reasons for this, from poverty to poor management by governments.

School & Career, Science, Nature and Tech

What is the Point in Learning Chemistry?

Have you ever sat in a Maths class wondering why you will ever need to be able 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… Chemistry?

Written By You

When I Met Mary Robinson – Written By You

Me and my mum went to hear this lady talk, her name is Mary Robinson, Mary was the President of Ireland, but she was not just any kind of President of Ireland,she was the first woman President of Ireland. She got a Presidential Medal of Freedom from President Obama in 2009. And was the first President of Ireland to visit the Queen.

Growing up

Mary grew up in a small town in Ireland, her mum and dad where doctors and her gran died when she was about 10 years old… When Mary was 17 she went to a finishing school in Paris while deciding if she wanted to become a nun… In that finishing school she was the only non-French speaking student there.

little light

Mary Robinson famously put a light in her kitchen window to guide the people that have left Ireland to live a country abroad back home.

my question

If you had a chance of asking Mary Robinson a question in front of 600 people, would you do it? I would, and I did. Here’s what I said and what Mary replied:

Afterwards Mary signed a copy of her book for me

Written By You

Living On a Boat – Written By You

Have you ever seen barges on the river, and wondered what it would be like to live on one? Is it really cramped and damp, and do you have to move around and go to a different school every week? We spoke to 11 year old Annabelle to find out what it’s really like to live on a boat.

Science, Nature and Tech

A Trip to Mars!

Imagine being able to catch a flight to Mars as easily as we travel to another country – that was the idea behind the Trip To Mars session I attended at the Cheltenham Science Festival. It was conducted by Dr Suze Kundu and Dr Simon Foster and presented as a pre-flight safety briefing, with both of them dressed as pilots! There were a lot of humorous moments and sci-fi references but also some great science.

Suze and Simon suggested that in the future, flights to Mars could be far quicker than they are now, and explored how some of the bigger problems could be overcome. For example, the Sun’s magnetic field deflects a significant proportion of the cosmic radiation that could be harmful to humans on Earth; as spaceships travel further away from the Earth and Sun they will have less protection because the magnetic field weakens. To combat this it’s possible that spaceships will contain or be covered with large and powerful magnets, to produce the same deflective effect. This would have the added advantage of also deflecting radiation from solar flares.

Spaceships journeying to Mars would travel at such speed that even tiny fragments of rock and dust could be damaging to the hull. To combat this, and also the heat generated when the spaceship passes through an atmosphere, Suze and Simon discussed the possibility of spaceships being coated in aerogel. This amazing material is a solid formed from silicone dioxide but is 98% air; this means that it is extremely light but also strong. Its melting point is 1,200°C (equivalent to asbestos) and it is a wonderful insulator. Because it consists of large pockets of air between thin layers of silicone dioxide, any dust or rock fragments that hit it would be slowed and stopped before they could penetrate the aerogel completely.

Suze and Simon also discussed the possibilities and problems with cryostasis. Theoretically this is when a person’s body is cooled to temperatures so low that they enter hibernation, ideal for long journeys through space. Unfortunately our technology isn’t advanced enough to do this at the moment; any attempt would result in the cells rupturing and the person dying. But in the future it will be possible, perhaps after the person’s DNA has been altered slightly so that they can produce antifreeze proteins like some species of wasps and turtles.