If the empty tube of toothpaste to fill the rear end with petroleum jelly or machine oil, and the tube to make a hole and feed it through the rod from a ball pen, as shown in the figure—get a convenient oil can to lubricate the parts in hard to reach places small mechanisms — such as alarm clocks or electric razors.
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HORSE-ROCKING CHAIR
If science fiction is subject to the future, for a child's imagination — the surrounding present: it is a folded piece of cloth starts to act up like a child and tilted the chair...
NOT A BUTTON, AND WEDGE
How often in the lectures or lessons on a stand, posters and other visual AIDS? Of course, stationery buttons! In recent years, however, they comes to the aid of sticky tape. However,...
