SEARCH

Showing 21-26 of 26 results

  • LEARNING

    It's not easy being green!

    Learningpost, David Canavan, Published on 12/01/2010

    » Kermit the Frog from the "Muppet Show" once sang a song entitled It's Not Easy Being Green, but I bet he didn't know how prophetic that statement would become!

  • LEARNING

    No emissions? No waste? No way!

    Learningpost, David Canavan, Published on 19/01/2010

    » Continuing on the green theme from the last two articles, I have decided to write an article on what I consider to be the future of living and how modern-day buildings can be adapted to become more environmentally friendly.

  • LEARNING

    Sonar

    Learningpost, David Canavan, Published on 26/01/2010

    » I have a question for you, the answer to which I will give you at the end of this article. You are on a boat looking for a school of fish when your sonar finally finds a school. It emits a "ping" that travels at the speed of sound, which is about 1,500 metres per second in water, and the reflected sound is received half a second later. Using the formula distance equals to speed multiplied by time, work out how deep the fish are, but be careful - there is a catch (pun intended).

  • LEARNING

    Do you see what I see?

    Learningpost, David Canavan, Published on 09/02/2010

    » The eye is an exceptional organ although the effectiveness of an animal's eye depends on how much it relies on sight and the environment in which it lives. Arguably, birds of prey, such as eagles and falcons, as well as scavenging vultures, have the most advanced eyesight, and they are able to spot tiny prey scurrying among the bushes or a carcass from kilometres away.

  • LEARNING

    Mother Nature's clocks

    Learningpost, David Canavan, Published on 23/02/2010

    » Although the deck of this article says that it is about dating really old things, that doesn't quite do it justice. This article is about dating the oldest things on earth, even earth itself!

  • LEARNING

    Trees are simply amazing

    Learningpost, David Canavan, Published on 09/03/2010

    » Many trees are sacred to Thais, and I can understand why. You may not give them a second thought, or you may admire their majesty with just a passing glance, but in reality, trees are extremely complex, diverse and very special living organisms.

Your recent history

  • Recently searched

    • Recently viewed links

      Did you find what you were looking for? Have you got some comments for us?