Showing posts with label fun project. Show all posts
Showing posts with label fun project. Show all posts

Friday, 20 March 2009

Walkalong Glider

Watch this to get motivated.

Want to make one for yourself. Here is how from instuctables.

This is a really simply one


The following videos demonstrate how to convert a dead butterfly into a walkalong glider. (a dead butterfly and nail polish were used.)






More info at sites.google.com/site/controllableslopesoaring/.

Wednesday, 23 April 2008

Spaghetti bridge



Thursday, 20 December 2007

Science Project for the holiday



What you will need:
a plate
full cream milk
food colours
detergent

An improved procedure [source]

1. Pour some full cream milk into a dinner plate
2. Squeeze some drops of food dye into the milk (one colour on one side, other colour on other side)
3. Add a drop of detergent onto the edge of the plate so it runs down into the milk
4. The colours begin swirling like a psychadelic pattern
5. You can add more detergent if the motion stops


Explanation [The explanation in the above video is incorrect]
Like milk itself, this classic experiment is actually quite complicated. Milk is a suspension of tiny fat globules (about 4% by volume) in water, plus a whole range of proteins, sugar (lactose) and nutrients like calcium. Detergent is a form of surfactant (short for surface active agent) - individual detergent molecules can bind with both water and oil.

The swirling effect in milk is probably driven by the detergent molecules racing around and coating the fat globules. As the detergent molecules are "consumed" by the fat, they create currents. You'll notice colours from the opposite edge of the plate appearing near the detergent and then shooting across the surface.

Monday, 10 September 2007

Make a pocket LED cube

3x3x3 cube of LEDs programmable to light up anyone you like - even in an animation!

Thursday, 6 September 2007

Physics as shown in movies

Here are some examples of the "gross scientific inaccuracies in the cinema world". See also

A fun project for the students would be to find and discuss such inaccuracies.

Thursday, 16 August 2007

More Pixel Art



Mr. Wong's tallest virtual building:

Saturday, 11 August 2007

Rubik's cube portrait

Summer vacation in the northern hemisphere still havs plenty left to do some interesting project. If you like challenge, here is a good one.

Choose a person (or object) which you like, convert into low resolution and in six colours. Assemble the picture using Rubik's cubes. Sound difficult? Here is an example.

from The Colbert Cubes

Friday, 10 August 2007

Pixel Art and Vexel Art

Pixel Art:

How to:



An awesome 100K by 100K artwork.
Few more examples:



Vexel Art:

From Wikipedia:

Vexel is a neologism and portmanteau for an entirely pixel-based raster form of digital art that imitates the vector graphics technique. The word derives from a combination of "vector" and "pixel" to distinguish them from normal vector graphics and normal raster images.


Howto:
www.vexels.net

Example:


note: Quality of images has been reduced due to resizing to fit the layout. Click on the image to see the original.

Thursday, 31 May 2007

Carbonated Fruit

This is a 6 min video.

A little science project (good for those schools in Northern Hemisphere: Summer) using dry ice.

Warning, dry ice is cold to the touch and can hurt you if used inappropriately. Please exercise caution when working with it, wear proper safety protection, and use it responsibly.