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Resistors are a vital part of any electronic circuit, protecti...
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Resistors
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Folded barrel roof.
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Model of a submersible rig with two children looking at it.
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Showing the strength of a paper barrel roof, Step (6).
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Testing the strength of a miniature skyscraper's frame.
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Folded barrel roof.
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Dams built across rivers create large reservoirs; they regulat...
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This model shows how an oil rig can float on hollow legs at th...
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Funnel, scissors, modelling caly, craft knife, dowl, wallpaper...
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This view of high-rise Manhattan is dominated by the Empire St...
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Build a wall of blocks on a sheet of paper. Arrange the blocks...
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Give the paper a gentle tug. The wall begins to collapse. This...
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Rebuild the wall, staggering the courses so the end of each bl...
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Pull the paper again to make the wall collapse. This time it d...
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Mkae six moulds from cardboard rectangles. Mark a 7 mm square ...
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Make 18 bars of modelling clay 4 cm long, 7 mm wide, and 3 mm ...
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Cut the tongue depressor into 30 strips 14 cm x 3 mm. Place fi...
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Lay a wooden beam on the supports. Loop the wire through the b...
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Plaster of Paris, adhesive tape, petroleum jelly, craft knife,...
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