Mathematics of the mission to the edge of space
On the 14th of October space diver Felix Baumgartner became the first person to exceed the sound barrier without any engine assistance. Descent data: Exit altitude: 39,045m above sea level Total jump...
View ArticlePass the small tweezers!
The great works of Chemistry that gave us the concept of molecules were done just over 200 years ago. [latexpage] In 1803, the Italian chemist Amedeo Avogadro showed that one mole of any substance...
View ArticleCan our family car really be emitting tonnes of greenhouse gases each year?...
One of the hydrocarbons in petrol is octane C8H18. This burns in oxygen in our engine to form carbon dioxide (a greenhouse gas) and water vapour, as follows: 2C8H18 + 25O2 → 16CO2 + 18H2O. Using...
View ArticleCrisis call on climate
A Courier Mail article entitled “Crisis call on climate” contained an estimate that since the beginning of the Industrial Revolution, 350 billion tonnes of carbon dioxide CO2 have been released through...
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Correlating heart rates
Have you ever measured your heart rate? Your heart rate is the number of times your heart beats per minute. When you’re exercising, your muscles need more energy. To get more energy, oxygen is needed...
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How do you like your pi?
[latexpage] You may have heard a little rumour about March 14. A rumour that should have your taste buds tingling. Written as a date – the American way – 3.14 is also the first three significant...
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They came, they counted, they ate pies
Pi Day – the ubiquitous mathematical celebration is over for another year. The highlight of our Pi Day celebrations was watching Arkie recite 100 digits of Pi. EVENT PHOTOGRAPHS T’SHIRTS Our clever...
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Making a Möbius Zipper
You will need • An open-ended zipper. If you unzip it all the way, the two sides should be completely separate • Needle & thread • Scissors • Pins or sticky tape What to do Make sure your...
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