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Science, Nature and Tech

Under the Sea with the RRS Discovery

Last month the The RRS Discovery, the most advanced research ship was launched in Southampton.

At £75 million it is one of the most expensive research ships ever commissioned. It measures at just over 100 metres long, with seven main laboratories and a bridge like the Starship Enterprise! It has just begun expeditions around the British Isles, currently examining the UK’s continental shelf, a band of sea floor around 50m-100m deep.

“These shelves are really very important,” says Dr Sanders from the National Oceanography Centre in Southampton. “There is a lot going on in the shelf seas and we need to understand how they work so we can safeguard their future.”

Art & History

Great Women You Should Know: Betty Skelton

In our series of Great Women You Should Know … here comes daredevil and adventurer Betty Skelton

When she was eight, Betty fell in love with aeroplanes. She watched them flying over her house every day, she devoured books about them, and she begged her parents to take her to airfields where she would persuade pilots to take her on rides above the clouds.

Betty must have been a very persuasive person, because she also talked a young Navy pilot into giving the whole family flying lessons. And when I say whole family, I mean it: Betty flew her first plane solo when she was just twelve years old. She might have been a tiny daredevil, but she was so scared her mother would scold her for doing it that she kept it a secret for a week!

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.

Science, Nature and Tech

Get Cracking With Computer Coding for Kids

Kids computing – there’s a lot of talk going on about it right now. What do you learn about computing in your school? Are they teaching you how to make cool video games? How to come up with a story that makes sense, how to make sure that it’s engaging, that there are challenges at each level, and that there’s a reward at the end? How to build that?

How to make the bird you toss flop realistically into a pile of whatever you choose – making sure that gravity works the way you would expect it to (or not). How to craft the graphics you need to tell your story? How to publish that to your own smartphone and to share it (or sell it!) to friends and strangers?

Hmmm, I didn’t think so. “ I’d rather just do some Power Point and Word exercises, “ said no kid, ever.

Popular, Science, Nature and Tech

What is Biotechnology?

Perhaps you have heard of the term biotechnology and wondered what it is. You may think you know already – after all, the parts that make up the word are very familiar: bio + technology. You have seen the first part of the word in biology, antibiotics, all sorts of words. It comes from Greek bios, which means ‘life’.

As for technology, it is not just about computers and smartphones. Technology is the practical use of knowledge to create useful things and solve problems. You might like to think of it as tech-knowledge-y. So, taking it one step further, biotechnology is about using biology in technology.

We talked to Alessandra Iscaro, a biotechnology researcher at the University of Florence, Italy, and she explained to us what it is all about.