Try this Arrow maze

arrow3You will need

  • Paper
  • Overhead projector sheet or tracing paper
  • Permanent marker
  • Pens or textas
  • A copy of the arrow maze [pdf, 7kB]

Solving an arrow maze
Although it might not look like it, this puzzle is a type of maze. The rules are quite simple:

  1. Start at the box labelled ‘In’.
  2. There are arrows in the box. Follow one of them to the next box.
  3. This box also has arrows. Pick one and follow it. Keep following arrows until you get to the box labelled ‘Out’.
  4. This maze has a loop from which you cannot escape – if you end up in the loop, you’ll have to start again!

Winning the Abel prize with fancy fields

Abel prizeToday, 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.

Motion In The Oceanic Currents: Scientists Find Out Why

coralPulsing Coral

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.

Approval of second science and technology project

science researchA 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.

Try this: Anamorphic art

anamorphic3You will need

  • A copy of the anamorphic grid [pdf, 29kB]
  • A copy of the square grid [pdf, 20kB]
  • Pencils and textas
  • A roll of aluminium foil, or some reflective mylar film taped into a cylinder

What to do

  1. 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.

New prime heralds perfect discovery

numbersSix 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.

As Croatia anticiptates EU accession and Life Sciences companies face EMA’s compliance deadlines, Moravia is the solution

deadlineMany 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.

History of Dubrovnik

DubrovnikOften 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.

Try this Explore the relationship between statistics and probability

school4

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 will need

  • Access to the Internet
  • Spreadsheet software
  • Calculator
  • Pencil and paper
  • Copy of the worksheet [PDF, 32 kB] (optional)

What is probability? What is statistics?

probabilityYou’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.

Who Was Diocletian?

DiocletianGaius 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.

Rimac Concept One – the unexpected Croatian electric supercar

While everyone is busy talking about the electric car from Dok-Ing 
… check out this beauty from last years motor show held in Frankfurt .

Google Glasses Project

The future has arrived with the Google glasses project.

Try this Make a pie chart

piechart5

Your completed pie chart.

You will need

  • About 10 people
  • 3 different circular pies, about the same size. Open topped tarts of different colours are best.
  • Paper
  • Pens
  • Protractor
  • Knife

What to do

  1. Write the name of each pie on a piece of paper. Make one copy of this survey sheet for every person.
  2. Give everyone a pen and a survey sheet. Show them the pies and ask them to write down the pie they most want to eat.

Is science ever wrong?

scienceScience 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.