WA: Celebrate International Year of Biodiversity If you live in Western Australia, it’s time to celebrate the International Year of Biodiversity. Head down to the Western Australian Museum to hear Andrew Hosie, the curator of aquatic zoology, talk about what species have been discovered in Western Australia over the last ten years. Find out what [...]
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Batteries often use potentially toxic chemicals such as nickel and cadmium to create electricity. It is estimated that around 94 per cent of dead batteries end up in landﬁll, which could lead to water pollution and damage soil microorganisms. The National Solar Energy Centre (NSEC) in Newcastle is the only multi-collector facility of its type [...]
Cloud crystals packed with life
Next time you’re outside, look up. Is there a cloud in the sky? You might know that these clouds are made of drops of water or ice, but that’s not all. Scientists in the US have now directly measured the biological material and mineral dust in the ice crystals found in clouds. When the temperature [...]
Today, one of the biggest prizes in mathematics will be awarded. The organisers have already announced the winner of the 2013 Abel prize – the Belgian mathematician Pierre Deligne.
Like many great mathematicians, Pierre has contributed to many different areas of mathematics. A lot of Pierre’s work is with sets of number-like objects, known as finite fields.
Imagine the numbers 0, 1, 2, 3, 4, arranged in a circle. When you’re counting, it’s 0, 1, 2, 3, 4. Since there’s no 5, you’d loop back to 0, and continue 1, 2 … etc. In this set, there are only five possible numbers.
Xeniids (ZEE need ids) do a certain exercise nearly 24 hours a day, a voluntary movement unlike any other oceanic creature in existence. What they do is they wave their arms in the air, slowly yet gently connecting their fingertips together until it forms almost a clasp, like a person wringing their hands together. Then they go back and back in again, doing this over and over in less than ten seconds per up and down motion. Over in Jerusalem, Israel these creatures are affectionately called “Amazing Pulsating Carpets” by Maya Kremian at Hebrew University who has discovered a reason the corals won’t stop moving. Why? In one word: Mixture.
A scientific project which is aimed at facilitating research and innovation in Croatia received funding on Friday as indicated in the press release issued on the international financial institution web site. The project received the funding amounting to EUR 20 million which is an equivalent of USD $ 26.24 million which was approved by the World Bank’s through its directors on Friday. The project is aimed to assist the innovators and researchers in Croatia. Among those that will benefit from the project include public institutions involved in research work, scientific communities, scientists and upcoming researchers whose eligibility for the funds and implementation of the projects funded by EU.
A roll of aluminium foil, or some reflective mylar film taped into a cylinder
What to do
Make a picture by using the textas to colour boxes in the square grid. You could make a house, or a face, or just a pretty spiral of colours. Make sure you fill each box with only one colour – it will make the next step a lot easier.
Six is an interesting number. If you add its factors 1, 2 and 3 together, you get 6. This is a neat trick that only works for some numbers, and mathematicians describe these numbers as perfect.
The next perfect number after 6 is 28 (1 + 2 + 4 + 7 + 14 = 28), and the third perfect number is 496. But most numbers aren’t perfect. Numbers with a sum of factors that falls short of the number are known as deficient. An example is 14, where 1 + 2 + 7 = 10. Others, such as 24, have too large a sum, (1 + 2 + 3 + 4 + 6 + 8 + 12 = 36) and are called abundant.
Many life sciences companies from all over the world and within the European Union region are gearing up in the rush to beat the July 1st compliance and regulations deadline. According to EU European Medicines Agency (EMA) standards, all such companies are required to have their product labels, information and documentation translated to the official language of the European Union member country in which they operate, on or before the day such a country gets EU accession. It is for this reason that Moravia, an internationally recognized company seeks to position itself in good time to offer guidance to life sciences sector companies in Croatia.
Often called the “Pearl of the Adriatic”, Dubrovnik is a seaport city, located at the southern end of Croatia. It is the primary maritime base and was made a UNESCO World Heritage Site in 1979. It has a fascinating history which dates back to the time of the Romans.
It was originally called Ragusa and was formed in the 7th century when residents of the coast, took shelter on a rocky island called Laus, to escape the barbarian hordes. The residents built huge walls to protect themselves from these hordes. The Roman Empire was already declining at this point and the residents of this town sought to make it their permanent home. Later, when the Slav migration was in progress, the Croatians settled there and both communities fortified and transformed this settlement into a major city. It flourished because of its proximity to the sea and the emergence of sea trade.
In the 2012 CensusAtSchool questionnaire, students were asked about how they travel to school. This activity will allow you to use 2012 CensusAtSchool data to work out whether it is more (or less) probable that students from two different states/territories would travel to school by a particular method (e.g. walk, car, bus, bicycle) in 2013.
You’ve probably heard the words probability and statistics being used in papers or on the news. You might have heard them in school. Even though they are common words, they can be hard to understand.
For example, statistics are very popular in sports. An athlete’s statistics sum up their previous performances. A cricket batter’s statistics might include their total runs scored, their average score, and how fast they score runs. Statistics are records of things that have already happened – whether fifty years ago, or fifty seconds ago.
Gaius Aurelius Valerius Diocletianus famously known as Diocles was born on 22nd December AD 240 in Dalmatia, present day Croatia. He was born in a poor family that had low status in the community. It is believed that his father was a former slave. However, this did not deter his determination to succeed in life and uplift the status of his family.
In fact, after the death of the Emperor Carus and his son Numerian, Diocles achieved a high position in the military. He was appointed as the successor of Numerian and ruled from 284 to 305 AD. Previously, he was the cavalry commander of Emperor Carus and his son. He was the commander of the imperial bodyguard.
Science is a well-established way of testing ideas. Scientists have an idea, and then run an experiment to test it. Then they look at the result, to see if they correctly predicted what happened. In many fields of science, including medical science where consequences can be harmful, what happens is so complex it’s impossible to observe everything. To help make sense of it all, scientists use statistics.
Scientists run experiments to test new medicine. They do each experiment many times, recording their results. At the same time, they can run each experiment without the new medicine, instead using a fake treatment called a placebo, and they repeat this lots of times as well.
Jane has some Australian silver coins in her pocket. When buying an apple, she realises she has more than $1 in silver coins, but can’t make exactly $1 with her coins. How is this possible? (Silver Australian coins come in 5c, 10c, 20c, and 50c.)
Wanna know the answer?