# Four Square

"An explanation of the proved mechanical fact that a box of four sides has more strength than a box of two or three sides. The frame in the modern motorcar is a four-sided steel box." 04:01:11:21 VS Boat plane “the Clipper” flying then landing in San Francisco Bay, the Bay Bridge in the background; Philippines written on nose of plane, narrator states plane flew over the Pacific Ocean from Manila to San Francisco; VS the Clipper plane on shore. VS inside hangar where the boat plane was constructed; large beams extend across the hangar; metal sheets are added to form the wing of the plane. 04:04:02:20 VS disembodied arm places lead weights on scale hanging from small one-sided metal beam until beam bends under the pressure; a second three-sided metal beam is used in the experiment, disembodied arm place three times as many lead weights onto the scale hanging from the end of the beam before it bends; box beam is used with four sides supporting 32 lead weights on the scale. 04:05:50:22 Aerial of the Statue of Liberty. 04:06:31:14 Stop-motion animation shows the evolution of car frame designs; the introduction of diagonal cross pieces 04:07:42:25 Four men install box girder-like bridge frame over a stream; VS workers nailing wood planks into bridge frame; VS antique steam roller with black smoke producing smokestack drives over small bridge passing over stream. 04:08:40:01 CU zoom in on spinning Chevrolet hubcap.

- Kind: Film
- Year: 1937
- By: Handy (Jam) Organization
- Genres: Industrial and advertising
- Archive: [Internet Archive](https://archive.org/details/0762_Four_Square_04_01_00_00)
- Licence or status: none stated by the archive
- Who can watch: Tweens profiles and older (the archive gives no rating; placed by Invisible Network from its collection and subjects)

[Watch now](https://invisiblenetwork.ai/watch/archive/ia/0762_Four_Square_04_01_00_00?play=1)