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2. Chinese siege weapons - Wikipedia

   en.wikipedia.org/wiki/Chinese_siege_weapons

   A hinged folding ladder known as the "cloud ladder" was quite prominent. Originally it used a counterweight to unfold once within reach of the enemy walls, but the contraption proved to be too vulnerable, and switched to a simple pulling mechanism during the Song dynasty .

3. Wing Enterprises - Wikipedia

   en.wikipedia.org/wiki/Wing_Enterprises

   The ladder itself is capable of being converted into several heights and configurations from a single ladder. Configurations include a straight or extension ladder, an A-frame ladder, a staircase ladder (an uneven A-frame for use on stairs), a 90° ladder, and both sides of a scaffolding trestle achieved through a triple locking hinge.

4. Ladder - Wikipedia

   en.wikipedia.org/wiki/Ladder

   The safest angle for a ladder is 75.5°; if it is too shallow, the bottom of the ladder is at risk of sliding, and if it is too steep, the ladder may fall backwards. This angle is achieved by following the 4 to 1 rule for a ladder placed on a vertical wall: for every four feet of vertical height, the ladder foot should move one foot from the wall.

5. Walz ladder factory comment was argument border wall is ... - AOL

   www.aol.com/walz-ladder-factory-argument-border...

   The claim: Tim Walz said he wanted to invest in a ladder factory to help migrants get over border wall. An Aug. 6 Instagram post (direct link, archive link) includes a video of Minnesota Gov. Tim ...

6. Was the Six Triple Eight Real? All About the History-Making ...

   www.aol.com/six-triple-eight-real-history...

   The Six Triple Eight, as the battalion was nicknamed, was tasked with sorting through 17 million pieces of undelivered mail in Europe and ensuring it was delivered to U.S. soldiers.

7. Escalade - Wikipedia

   en.wikipedia.org/wiki/Escalade

   Escalade consists of attacking soldiers advancing to the base of a wall, setting ladders, and climbing to engage the defending forces. Though very simple and direct, it was also one of the most dangerous options available; escalade would generally be conducted in the face of arrow fire from the battlements, and the defenders would naturally attempt to push ladders away from the wall.