Is all sorts of advice was on the use of caps and lids from unnecessary bubbles and tubes. Here’s another — receiving beautiful shaped heads of bolts or nuts. Look at the picture. Depending on the conceived in the cover is inserted into the bolt (or nut, screwed on a greased bolt) and filled with epoxy resin.
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SUN PROTECTION
If the solar rays fall on the thermometer, mounted outside window frame, it heats up and shows... its temperature, not the ambient air. To avoid this, protect the thermometer shade...
BURNER WITHOUT FIRE…
By analogy with existing devices for welding and brazing working "with the light", this device is also called a burner. However, it acts on the mating parts do not flame, and hot air...
