Sunday, May 13, 2012

Papier-mâché

1- a recipe to make the "glue" with just flour and water [video]
2- an example: how to make a mask [video]
3- how to make a cat [video]

Saturday, May 12, 2012

Create sentences and stories... by rolling dice!

Soft Touch™ Dice: Sentence Building Complete Set
'' Practice building sentences by rolling word dice, putting them in order, and recording the sentences that are built. Set 1 focuses on simple sentences while Set 2 adds additional parts of speech to build more complex sentences. The color-coded dice help players recognize parts of speech and word order, which support English Language Learners. '' [source]

Incredible machines built with LEGO!

'' Machines have long been used to ease repetitive labor. Some machines eased the labor of calculation; watches, orrerys, calculators, difference engines, etc. Gears were the workhorse of this age reaching the zenith during the late 19th century only to decline as they were replaced with transisters for most computation.
...

Babbage Difference Engine made with LEGO

This is the 3rd generation of Babbage Difference Engine made with LEGO. It is modeled after Babbages Difference Engine #1. The 3rd generation operates five times faster than the 2nd generation.
This machine can evaluate polynomials of the form Ax^2 + Bx + C for x=0, 1, 2, …n with 3 digit results.


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Antikythera Mechanism (Eclipse Predictor) made with LEGO

This machine, modeled after the ancient Greek original, can calulate the date and time of solar and lunar eclipses over a hundred year period.
It is an analog computer with over 100 gears and 7 differential gearboxes. It is accurate to a day or two over it's range.
'' [source]

Also this project is very interesting, showing how make a working 7-segment display with lego technic [video]