93 replies to this topic

[hvz]

Simple Trig using two 9.5m ladders where the sections of moat along two sides meet.

place first ladder diagonally across the ouside corner of the moat so that the end only just bears on the outer edges of the moat on either side of the castle.

at the midspan of the ladder you will be above the moat, 4.75m from the outer corner and 9.39m form the inner corner. just close enough to span across with the second 9.5m ladder by supporting it on the first ladder at midspan.

[Gildoania]

i think his advice was.....build boats

[tanisdevil]

A square medieval castle on a square island was under siege. All around the island, there was a 10 metre wide water moat. But the conquerors could make foot-bridges only 9.5 metres long. Nevertheless a wise man was able to figure out how to get over the water. What do you think was his advice?


- If the moat was around the island, wouldn't they be able to go right up to the island itself?

[MurrayMD]

This should work. The diagonal solution should work too with 9.5 m planks.

Attached Files

•  bridge.bmp   150.78K   115 downloads

Edited by MurrayMD, 10 January 2008 - 10:52 AM.

[Quinten27]

This should work. The diagonal solution should work too with 9.5 m planks.

While the diagnol solution seems to be the best, it seems it would also be possible only using one foot bridge. By using a large stone or other heavy enough object, you could place the bridge on the shore and hold it in place with the stone. This would cover about 9 meters of the moat, leaving about 1/2 meter to secure the bridge to the ground with the stone. Then people could walk across and jump the last meter over the moat.

[thenetworkwanderer]

if they can connect bridges, why don' they just make smaller ones and connect them?

[DrJim]

Take one footbridge and place it across a corner of the moat. Another bridge at a right angle to the center of the first bridge will reach land.

[Oblivion]

Connect the footbridges width-ways to make a square (for example). Rotate the square to a diamond shape and have opposing points on each side of the moat.

Edited by Oblivion, 20 February 2008 - 02:45 PM.

[jam jam]

I would make a diving board and then let them jump across..

[jofis]

Spoiler for answer!

you tie rope and a hook(s) onto the portable bridge then throw the rope and hook until it catches onto the other side then secure the hook onto the ground by u orhave somone hold it. presto bridge.