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Saturday, November 26, 2011

Fwd: [Open Manufacturing] graphene inkjet printed & electricity from light wavelengths

---------- Forwarded message ----------
From: "Giovanni Lostumbo" <giovanni.lostumbo@gmail.com>
Date: Nov 26, 2011 10:08 AM
Subject: [Open Manufacturing] graphene inkjet printed & electricity from light wavelengths
To: "Open Manufacturing" <openmanufacturing@googlegroups.com>

1) news of inkjet-based graphene printing:
http://www.extremetech.com/extreme/106599-first-inkjet-printed-graphene-computer-circuit-is-transparent-flexible
http://www.extremetech.com/extreme/101763-parc-thinfilm-unveil-first-printed-flexible-cmos-computer-circuit
and 2) graphene is shown to produce electricity when exposed to light:
http://www.extremetech.com/extreme/98941-graphene-creates-electricity-when-struck-by-light

 a RepRap could inkjet graphene-based solar panels.

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Fwd: A rich visual display of quantitative money information (Metamodern)

---------- Forwarded message ----------
From: "Newsfeed to Email Gateway" <emlynoregan@gmail.com>
Date: Nov 25, 2011 7:54 AM
Subject: A rich visual display of quantitative money information (Metamodern)
To: <technologiclee@gmail.com>

A rich visual display of quantitative money information (11/25/11 11:25:53 UTC)

Here's a huge, data-rich visualization of the money dimension of McDonald's meals, billionaires, the Moon landing, income quintiles, and the like. It's well done, spans 12 orders of magnitude, and kept my attention for entirely too long.

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Fwd: Google Wave Sunsetting in 2012

---------- Forwarded message ----------
From: "Google Wave" <wave-noreply@google.com>
Date: Nov 25, 2011 12:43 AM
Subject: Google Wave Sunsetting in 2012
To: <technologiclee@gmail.com>

Dear Wavers,

More than a year ago, we announced that Google Wave would no longer be developed as a separate product. At the time, we committed to maintaining the site at least through to the end of 2010. Today, we are sharing the specific dates for ending this maintenance period and shutting down Wave. As of January 31, 2012, all waves will be read-only, and the Wave service will be turned off on April 30, 2012. You will be able to continue exporting individual waves using the existing PDF export feature until the Google Wave service is turned off. We encourage you to export any important data before April 30, 2012.

If you would like to continue using Wave, there are a number of open source projects, including Apache Wave. There is also an open source project called Walkaround that includes an experimental feature that lets you import all your Waves from Google. This feature will also work until the Wave service is turned off on April 30, 2012.

For more details, please see our help center.

Yours sincerely,

The Wave Team

© 2011 Google Inc. 1600 Amphitheatre Parkway, Mountain View, CA 94043
You have received this mandatory email service announcement to update you about important changes to your Google Wave account.

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Fwd: Polygonica to support AMF format.

---------- Forwarded message ----------
From: "Nigel Starling" <Nigel.Starling@machineworks.com>
Date: Nov 24, 2011 8:21 AM
Subject: Polygonica to support AMF format.
To: <stl2@googlegroups.com>

Professor Lipson invited me to the group to announce our latest software release, so apologies for the advert.

Polygonica, the Polygon SolidModeling toolkit from MachineWorks,
is a software toolkit for carrying out a wide range of geometric operations on 3-d models such as automatic solid healing, fixing self-intersections, slicing and other Boolean operations. See http://www.machineworks.com/polygonica.htm and http://www.machineworks.com/news-2011-11-03.htm
 
To support customers in Additive Manufacturing we have extended the existing input and output file formats to include AMF.
 
As a developer I was impressed with the clarity of the specification and we were able to quickly develop the XML parser and encoder for the 3-d geometry.
Coming late to this group a couple of features of the specification seemed curious. Maybe someone can assist with a brief history lesson ?
 
1.  Compressed format.
 
A compressed data file may take less file-space but takes longer to parse. Why was this option chosen rather than a binary format ?
Is there a reliable way to spot a zipped file when opened ?
 
2.  Restrictions on geometry. 
 
The specification suggests that objects not of type "support" must comply with all the restrictions on geometry.
Should it fail to parse, or just warn users ? Must any AMF parser contain the functionality to validate the geometry ?
Polygonica provides all the functionality to validate the geometry and automatically repair any problems found.
 
Nigel Starling 
Senior Software Engineer
MachineWorks Ltd.

Nigel Starling
Senior Software Engineer

November 29 - December 2, 2011
Frankfurt, Germany
Hall 8 Stand: A123

MachineWorks Ltd
Rutledge House, 78 Clarkehouse Rd
Sheffield, S10 2LJ, United Kingdom
Registered in England, No 4561671
www.machineworks.com

Tel: +44 114 2231370
Fax: +44 114 2231371
Nigel.Starling@machineworks.com



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