Doodle Science - March 2014

Circulated to schools, organisations and individuals - covering primary science and related bits and bobs.

Remember the Sun? It seems so long ago that it was warm and sunny. This is a cactus, a Cereus I think and nestling on it is a polistes wasps nest. These cute little predators don't both building a proper nest with a cover, if you lean on them they sting, but not too hard. I took this in the South a few years ago.
Great Dates in Sci and Tech for March

1st 1966 ~ Venera 3 space probe landed but did not send back the first pictures of the surface of the planet Venus
4th 1493 ~ Columbus get back to Europe having discovered the New World
4th 1887 ~ Daimler unveils his first 4 wheel internal combustion car
7th 1799 ~ The Royal Institution was founded by the very interesting Count Rumford, a man with a strange history
8th 1934 ~ Edwin Hubble produces a photo with showing there are more galaxies than stars in the Milky Way.
13th 1781 ~ Herschel discovers a planet in his back garden. He used a telescope and it was Uranus.
18th 1965 ~ Leonov becomes the first person to space walk.
22nd 1895 ~ First screening of moving pictures by the Lumiere Brothers.
30th 1842 ~ Dr Longs first use of anaethesia in an operation
30th 1858 ~ First pencil with a rubber attached.
Something to try. Making sherbet

This is pretty easy, you will need two teaspoons of icing sugar, one teaspoon of dry citric acid crystals and half a teaspoon of baking powder. Mix these together and taste. The flavor will vary with the ratios of the ingredients so there is plenty of scope for experimentation. The way it works is that the sugar makes it sweet, the citric acid makes it lemony and the baking powder makes it fizzy. Baking powder is composed of sodium hydrogen carbonate that reacts with the other ingredient in it tartaric acid when they get wet and give off carbon dioxide.
Health and safety. Make sure nobody is allergic to the ingredients, do not each too much and make sure to brush teeth after eating sugary foods.

Mad Scientists, I am not really sure this is fair, Tesla was a genius.

Crystal Ball Harvesting energy.

British Geological Maps and they have phone apps too.