http://www.physlink.com/ If you are interested in physics and astronomy, you will definitely like this website. It offers many sections to explore and you can go through the news stories pertaining to these disciplines on the main page. There are also sections on education and reference, where you may browse through new theories, essays and software, or put a question or two to the experts.
For children only
http://www.childrenssoftware.com/ There are many websites where it is difficult to distinguish between software for kids and those for adults. This website should be a relief for parents who want some quality software designed exclusively for children. The software is categorised into sections from typing to sports and of course education. There is a classification by age as well.
Let’s invent something
http://www.invent.org/ Who doesn’t like to be innovative? At some level, we’d all like to use our creativity and invent something useful for the world. Here is your chance: log on to the official website of Invent Now, a non-profit organisation which encourages people to invent and contribute to progress. You can go through their programmes, workshops and competitions to learn more about how and what you can create.
Tie a tie
http://www.powells.com/biblio/66-1841155683-1 We have all come across scientific aspects of the strangest of things. But ties seem to be in another league altogether. Or are they? Here is a book which analyses the science of knotting a tie using mathematics. In fact, in all there are 85 ways to tie a tie! You can even read reviews and descriptions.