Doodle Science - April 2017

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

Ruhmkorf coil with a ball and a disc
Sparks from my Ruhmkorff Coil. A big induction coil I managed to come by, I had to repair it but it goes a treat, put 6 Volts DC in and get 100KV AC back out, quite amazing. I don't often use it in shows as it is a little heavy, kit like this was in the first radio transmitters.

Great Dates in Sci and Tech for April

1st 1875 ~ First weather map published in the times., Not April Fool
4th 1975 ~ Gates and Allen form Microsoft
6th 1938 ~ Plunkett invent Teflon
9th 1809 ~ Isambard Kingdom Brunnel is born
12th 1961 ~ Gagarin in orbit
15th 1726 ~ Newton tells the apple story, might be true
25 1953 ~ Watson and Crick present their work on DNA
27th 1981 ~ Computer mouse is born

Things in the sky this month.

Pretty quiet month but highlights include
1st Mercury at greatest eastern elongation, highest point in the evening sky
7th, Jupiter at opposition, as close as it gts to the Earth and visible all night, good to look at through binoculars.
11th Full Moon
22/23rd Lyrid Meteor show, some may be seen from the 16th to the 25th
26th New Moon
29th International Astronomy Day

Interesting links

Aurora watch last week there was an alert.

The Cutest Spiders, if these don't make you friends with arachnids, nothing will

A collection of interesting chemical reactions

Just loads about old Robots Cybernetic Zoo