Dust flux, Vostok ice core

Dust flux, Vostok ice core
Two dimensional phase space reconstruction of dust flux from the Vostok core over the period 186-4 ka using the time derivative method. Dust flux on the x-axis, rate of change is on the y-axis. From Gipp (2001).

Friday, July 31, 2015

Fun with 3d printing

The Design Exchange has been hosting an exhibit on 3-d printing for a couple of weeks now. I decided to spin down to take a look at it before next month's meeting in Washington (which involves another 3-d printing process, but with metals).

The first exhibit shows a machine tracing out it printed pattern in slow motion. The museum staff explained they didn't leave the machine printing because they didn't want to make thousands of chairs. But the arm followed the pink pattern without printing to demonstrate its ability to trace in minute detail. We were assured that the real printing proceeded much faster, but at full speed the machine arm represented a hazard to visitors.

A section of wall for a four-story canal house being built in Amsterdam. The hollow spaces in the wall are to allow the wiring and plumbing to be installed after the house is assembled.

Examples of printed sandstone tiles. No scale, but they were a little bigger than a square foot.

Spools of polymer used by the printers on-site.

A section of the arabesque wall.

Now a possible World Complex exclusive. Break out your 3D glasses (the cheap red and blue type).

 Take a look at the following. Your left eye should look through the red lens, your right eye through the blue.

Images from video of the Arabesque wall. The top image seems to give the strongest effect.

I shot a little video, but it is too shaky to post. Need a tripod next time.


  1. The blog machine or some thing ate my long comment.

    Congratulations on the successful short.* In your last response to me you didn't say you already shorted the Chines market.

    Any how, what I wanted to ask was, what, why, and how on shorting the Chinese market.

    What do you think was important? Did you do much research?

    What were the indicators to you of the opportunities? How did you figure it out or notice? Did you know what was going on or did you figure it out?

    Were you sure at the time? Were you concerned about the market just going up more while short? Did you figure out a sure downward dynamic was in play? If so what?

    Did you short while it was going up, when it turned, or when it plummeted?

    What else?

    Were you in the right place at the right time? Do you think there is a good way to spot these bubble run ups and pops with out visiting? Do you think visiting the place is an absolute requirement to speculate like this?

    Minor questions: Leverage no leverage? Did you hedge any way?

  2. Flexography is a method that involves long printing. Printing newspapers involves a method known as gravure printing. Lithography is the cheapest method available. Printing on fabric is known as screen printing. Check these guys out