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Stardate Friday 22nd February 2008 Issue 268
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So it’s goodbye to the Brit Awards and hello to the Oscars. All that fawning and blubbering - can’t imagine such a spectacle at the Nobels. “I’d like to thank my team, (eyes welling up) Ernie the porter for invaluable discussions, the 24hr coffee shop across the road, Citations-R-Us, and most of all (snivel) my equipment I couldn’t have done it without you. (Lower lip trembling.) HPLC this is for you! (Brandish!)
Before we get going a quick mention of World Book Day on 6 March. We’ve taken the liberty of scattering a few of our favourite book titles throughout the newsletter. If you think they’re bad you should check out the rest of the PS Joke Collection. Or then again, maybe not.
The line-up this week:
- A Spot of Agri-Culture: Weather or not?
- Gimme Five... facts about flamingos
- Stump the Scientist: flour stumper
- Activity of the Week: Physics stronger than those who study it?
- Mouses at the Ready: Inside DNA exhibition
- Noticeboard: FYI
- Recommended websites of the week
- The Winners’ Enclosure
- Joke of the Week
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1. Agri-Culture What is the secret of a flock of sheep? Timing!
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Thanks Guy. If you send us the right answer to this question you could win a packet of seeds from Garden Organic, the leading charity dedicated to researching and promoting organic gardening, farming and food.
‘How long is a cow pregnant for?’
Simply email us with your correct answer and your name and address, and the words SOW WHAT in the subject line, to planet-science.news@nesta.org.uk. The winner will be picked at random on Wednesday 19 March at 5pm.
The Insurmountable Problem
by Major Setback
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2. Gimme Five fascinating facts about... Flamingos
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This week’s Gimme Five is courtesy of Jonathan Sanderson the Scicast-meister himself:
- They're filter-feeders. They eat by sifting water for tiny shrimp using bristles in their bills.
- Flamingos aren't naturally pink. The shrimp and algae they eat contain beta-carotene dye which the birds excrete into their feathers, turning them pink.
- Flamingo tongues were a delicacy in ancient Rome.
- The arteries and veins in flamingos' legs run closely together, acting like a heat exchanger to warm the body-bound blood by cooling the foot-bound blood.
- Flamingos stand on one foot to stay warm, hunt food, and stay "unwrinkled".
Read here for more Flamingo facts.
Thanks Jonathan!
Have you got FIVE facts about anything/everything? Preferably science-based of course (we’re not called Planet Science for nothing y’know). If so, send it along to us at planet-science.news@nesta.org.uk with GIMME FIVE in the subject line. Fancy seeing your name in print? Your wish is our command.
Is there life on Mars?
By Frank Lee Know
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3. Stump the Scientist
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 Hoorah! We have some answers for Anne Duncan who asked
“Can ordinary flour that has been mixed with water to form a gloopy substance or held in suspension until it settles be reversed by evaporation, or does the flour irreversibly change once mixed with water?”
Roy Lowry proffers
“Flour changes irreversibly once immersed in water due to the gluten content. Gluten is a protein which forms long chains when exposed to water, a bit like plastic. The dissolve/not dissolve experiment is not a fair one if flour is used as flour is not a pure substance some parts do dissolve (salt from the wheat cells), some don’t (parts of the husk of the grain) and some change due to the interactions with water (like gluten). Check these links for a good explanation of what happen to the gluten and an experiment to make gluten balls“
Nigel Bowen adds
“The flour does irreversibly change when mixed with water. Starch is the major component of flour. Starch exists in tiny granules, which swell and break when placed in water, particularly if kneaded. This releases the starch molecules, which then all stick together to make a goopy, gluey mess. So even if you evaporate off the water, the starch granules have burst and formed a gel, which causes the stickiness.” (And that came all the way from Australia y’know, ah the global dimensions of Planet Science ...)"
Thanks for that scientists on this occasion the scientist was NOT stumped!
If you can help or have a burning question of your own then send us an email with STUMP THE SCIENTIST in the subject line to planet-science.news@nesta.org.uk
Origin of the Universe
By L. F. A. Bang
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4. Activity of the Week
Physics stronger than those who study it?
Aha! A fabulous activity that requires two large thick books just the job for World Book Day.
You will need:
- Two large, thick, paperback text books - the closer they are in size the better.
- A strong volunteer
What you do
- Lock the books together. You can do this as if you were riffle-shuffling a pack of cards (but much slower!). Alternatively flick through about 20 pages of one book and flick about 20 pages of the second book on top.
- The deeper the books are inserted into each other the better the grip.
- Now ask your strong volunteer to pull in the spine of one of the books while you pull on the spine of the other.
- To take the books apart, you'll need to give them a shake and ease them apart.
What's going on?
Paper isn't quite as smooth as it seems. We can write on it because there is friction between a pencil and the paper - the friction rubs off some of the pencil's graphite.
If you hold two pieces of paper together with flat palms and try to rub them together you get an idea of the amount of friction between just two pieces of paper. The dips and grooves in the surface of one piece of paper lock into the dips and grooves of the other.
Each time a page from one of the books comes into contact with a page from the other book there will be friction when they are pulled in opposite directions. Multiply this friction by the number of pages in contact, and the amount of friction increases enormously.
The spine, and the fact that you are squeezing the books to get a good grip, just pushes the dips and grooves in the interleaved pages of the books harder into each other. The result is books that can't be pulled apart.
The only way to release them is the lift the pages apart - and you can do this by giving the books a bit of a shake.
Special safety advice
Don't pull so hard that either one of you falls back. Also be careful if the books are important: the friction can hold them together very strongly and you could rip the spine off before getting them apart.
This activity was taken from the Planet Scicast site.
Keep checking back for new films and, whilst you’re about it - how about submitting one of your own?
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5. Mouses at the Ready
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Boy or girl? High risk or healthy? Innocent or guilty? A little DNA can make a big difference...
Inside DNA is a brand new exhibition exploring the human genome and how current research will affect our lives in future. Collect DNA evidence to solve a murder, find out how similar or unique you are compared with other exhibition visitors, compare yourself to a primate or Neanderthal, and explore issues such as selecting babies' characteristics, medical testing and the use of DNA databases. You will also have the chance to feed your opinions into government policy.
Inside DNA is in Explore-At-Bristol until 2 September 2008; call 0845 345 1235 or visit the site.
Developed by At-Bristol on behalf of Ecsite-uk, with funding from the Wellcome Trust and support from the Sanger Institute.
We have TWO family passes for Explore-At-Bristol! If you’d like to win one
then email us with your name and address, and the words ‘GENE-IUS in the subject line, to planet-science.news@nesta.org.uk.
The draw will take place at 5pm on Wednesday 27th February.
Plus those generous folks at Explore-At- Bristol have offered us twenty discount vouchers for the runners up. How kind!
Life beneath the Sea
By Chris Stations
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Lurve Quiz
Valentine’s Day might be sooooooo last week but Planet Science still offers you the chance of entering the Lurve Bug Quiz. Camilla may have uncontrollable hair but can she straighten out her love life? Read all about the romantic antics going on in the Mild Virology Laboratory and while you’re at it see if you can fill in the blanks with sensible answers. Get them all right and you’ll be in with a chance of winning a medical dictionary, handy for hypochondriacs, and you can see how your heart really works.
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I’m a Scientist Get Me Out of Here! - Secondary Schools
Are you a secondary science teacher who wants help to bring How Science Works (HSW) to life in the classroom? With the FREE event, ‘I’m a Scientist, Get me out of Here!’ you can get your students talking to real scientists online. Then give them a say by voting for who should get the prize!
If you’d like your class to be one of 40 classes across the country taking part then please get in touch.
Event runs: 2nd - 27th June
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Making a Mint Competition
Don’t forget to order your Making a Mint pack (poster, seeds and balance sheet)
Happy Minting
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Microbiology Competition KS3 and KS4
Microbiology in Schools Advisory Committee (MISAC) runs a popular annual competition with cash prizes for both students and their schools. Each participating student receives a certificate for their record of achievement and every school entering the competition is sent a pack of teaching resources.
The 2008 Competition title is Medicines from Fungi
Produce an A4 sized factsheet about one drug of fungal origin.
Closing date: 31 March 2008
Application form here.
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Leave It Off It’s E-day - 27-28 February
Have you heard about the E-day?
Over 24 hours, E-Day will be trying to show how even small energy saving measures can be made to add up, and potentially play a part in tackling climate change.
Everyone who wants to take part in E-Day is being asked to leave off household electrical items, which do not need to be on, and to leave these items off for as long as possible.
These might include lights in rooms that are not being used, televisions left on standby, mobile phone chargers left plugged in, unused printers, etc, etc.
Poster available from here.
The Force of Gravity
by Ivor Sawhead
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7. Recommended website of the week
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Thanks to Andrew Harmworth who alerted us to this useful website which he came across through the Eco-Schools website.
Sustainable Learning is a programme providing a structured, task based approach to the way energy and water is used in schools. Schools working through this programme have realised energy reductions of 10% on average and have a better understanding of how energy and water is used in their schools.
Since most State Schools will need to carry Energy Certificates on some of their buildings, it’s useful to know that the Sustainable Learning website has information about this.
By the way, if you’ve got a good website to recommend then send it along to us at planet-science.news@nesta.org.uk with RWW in the subject line. Thank you very gladly.
Self Defence
by Flora Mugga
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Remember last week when we were offering you four Darth Taters?
The lucky winners are Hannah Stephenson of Leamington Spa, Elizabeth Adams of Barnstaple, Karen Lindsay of Glasgow and Jenny Mallinson of Hull. Well done and may the mash be with you!
Lucky winner of the seeds from last month’s Spot of Agri-Culture is Mrs Kin Griffiths from Hertfordshire.
Plunged into Darkness
by Ophelia Wayout
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9. Joke of the week
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Builders in the south of England were digging foundations when they came across the corner of what looked like a large stone box. They called in the archaeologists, who excavated the site further. With increasing excitement, they unearthed an intact sarcophagus decorated with crown-motifs.
Carefully they lifted the lid. Inside was a wooden coffin, bearing an embossed crown design. Through the disintegrating walls they could see a skeleton. There was still a crown around its skull. The skeleton looked complete, except that the tarsals, metatarsals and phalanges were missing. They wondered which king it might be.
"That's easy," shouted a historian. "It’s King Harold.
"How can you be so sure," the archaeologists asked.
The reply was swift. "At the Battle of Hastings, King Harold was de-feeted!"
And if you think that’s bad then don’t blame us, blame John Rodway!
Thanks John.
And some more terrible book jokes…
Why did the librarian slip and fall on the library floor?
Because she was in the non-friction section.
Why was the T-Rex afraid to go to the library?
Because her books were 60 million years overdue.
Learn To Love Mushrooms And Become a Fun Guy
by Michael O'Gee
The class went to a concert. Afterwards Fred asked the music teacher why members of the orchestra kept looking at a book while they played. "Those books are the score," replied the teacher. "Really?" replied Fred, "who was winning?"
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