Monday, June 3, 2013

Tension

Our bridge was built correctly, because it failed when the middle bar broke. There was the most tension here, which was consistent with the bridge plan.

Thursday, May 30, 2013

Water under the bridge

Balancing the bucket on the bridge.

Jordan testing our bridge.

The defeated Pwnage Bridge.

Weighing the sand our bridge could hold. The bridge supported 5536 grams of sand and bucket weight. Divided by the bridge's weight, the efficiency came to 361.8.


We'll cross that bridge when we come to it.

Jarjar Binks crossing the Pwnage Bridge.

Jordan and her Lego overall-clad doppelgänger on the Pwnage Bridge.

Weighing our bridge

1.53 g

Tuesday, May 28, 2013

Bridge building, day 4

Today we had to replace some tubes due to a cutting mishap. We were able to redo them quickly and we then moved onto gluing the trusses. We tried to pull the 2 mm strips taught for as much tension as possible. The trusses seem a bit wobbly, but will hopefully be steadied when the entire bridge has been put together.

Constructing trusses!

Thursday, May 23, 2013

Bridge Building, day 2

We spent today cutting out trusses and gluing tubes for our bridge. Having cut out the tubes yesterday, I measured and drew lines one centimeter apart, with a six millimeter flap on the end. I folded on theses lines, making sharp creases with my pen. Jordan traced and cut out many trusses, and then carefully glued the tubes I was folding. I forgot to take any pictures of the process, but I'll definitely do that tomorrow. The Pwnage Bridge is on its way.