Improve Your Communication Skills
Do Home Educated Kids Have Friends?
‘Do home educated kids have friends’, may sound like quite a rude question to ask, but according to 14 year old Iona, this and other questions are asked of her when she says that she doesn’t go to school.
She answers common questions in our article about the reality of home ed.
What is Your Favourite … Poem?
Everyone has their favourite song, their favourite film; some of us even have a favourite book. Carolyn Ward wants to know if you have a favourite poem.
Who Was Christina of Denmark?
You may have heard her referred to as ‘The One Who Got Away’ from Henry VIII, but who was Christina of Denmark? Historian Lucy Allen explains.
“If I had two heads, one should be at the King of England’s disposal!”
Most of the time, when someone claims that a king or queen made a clever quip, it turns out to be made up, but the line Christina of Denmark supposedly used to reply to Henry VIII’s proposal of marriage is more likely to be true than most.
Where did the Word Butterfly Come From?
Millie explained recently what etymology means, and fitting to this week’s theme of Jump! Into Biology, we are are asking ‘where did the word butterfly come from?’.
Who hasn’t seen a butterfly flitting by and enjoyed seeing the flutter of its wings? But have you ever considered why it came to be called “butterfly”? Perhaps you have wondered whether there used to be a large number of yellow, butter-coloured butterflies who gave their name to the whole species?
Well, there is a nice little story attached to the name of the butterfly. In the past, there was a general belief that butterflies ate milk and butter. This probably came about because of the way that flies hover over any food at all that’s left out, and butterflies may have been seen hovering over uncovered pails of milk and butter. Not only that, but this belief developed to encompass the idea that butterflies were either sent out by witches to steal butter, or were in fact, witches themselves, disguised as butterflies. Quite why the witches were out to steal the butter, we don’t know!
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.