To explore the law of gravity is always more difficult than any other section of the school of physics. The fact that to explain this phenomenon the teacher has literally “on fingers”. And devices demonstrating the action of gravitational forces, the industry is not yet released.
DIY
“ANTIGRAVITATOR”
Even the heavy bag or the bag will seem half the size, if you use our advice and make them removable handle. To make it out of plywood with a thickness of 10 -12 mm from the PCB or plexiglass.
DRIVE? THE OTHER DISK!


PUZZLE OF POSTCARDS
There is probably not one family that would not receive greeting cards. Over time they accumulate quite a lot, and most of them are usually thrown away. Meanwhile, postcards, due to their rigidity, can be used for making toys, interesting and useful to young children. Here are some of them.
RIBBING ADORNS…

FURNITURE? IT’S EASY!

SHELVES INCREASE THE CABINET

GLUING — SO RELIABLE!
Use Scotch transparent tape — in many cases much more convenient than glue. Only one disadvantage: it is difficult to glue the long leaves: sticky tape curled, deformed, and the quality of the gluing in this case decreases significantly. In this case, you will help a simple device. All you will need is a steel Read more…
BELT KEY
With it easy to turn tightly wound cover and the clutch. In this tool, as the tape uses a rubber strip with a thickness of about 3 mm, width 22 mm and length of 450 mm. If you want to use the key for the caps of large diameters, respectively, and increased the length of Read more…
TABLE GRINDING
