Author: grant

GSL Shell

GSL Shell is an interactive interface that gives access to the GSL numerical routines by using Lua, an easy to learn and powerful programming language. With GSL Shell you can access very easily the functions provided by the GSL library without the need of writing and compile a stand-alone C application. In addition the power and expressivity of the Lua language make easy to develop and tests complex procedures to treat your data and use effectively the GSL routines. You will be also able to create plot in real-time by using the powerful builtin graphical module.
GSL Shell is still a young project and it is currently not widely used. It still lacks some important features but we believe that it is very promising because it is built on top of three outstanding free software libraries: the GSL library, Lua and the AGG library. By using and combining together these software components GSL Shell gives the opportunity of doing advanced numerical calculations and produce beautiful plot of the data or mathematical functions.

(via GSL via Mike K.)
Like Mike said, looks like a nice complement to Octave or MATLAB.

To again feel the creative voice

Through an historical discussion of the role and nature of creativity in the sciences and mathematics, a process to have students find their creative voice is described

(via stevem)
I couldn’t elegantly put to words just how delightful this paper is about the nature of creativity and learning. If you have ever had the experience of having a “nightmare” about something you are trying very hard to learn and then eventually “dreamed the solution”; then you will find this paper to be both fascinating and inspiring.

Reflective Tape

Wanting to add some more nighttime visibility I searched for reflective tape and found this:

3M™ Scotchlite™ Flexible Reflective Graphic Film Series 680
Use this durable, flexible, enclosed-lens, retroreflective film to make permanent, multicolor commercial signs, striping, vehicle or railroad graphics. These graphics have a similar daytime and nighttime appearance. The film has positionable, pressure-activated adhesive and a total thickness of .007 to .008 inches.
This enclosed-lens, retroreflective film is intended for making permanent, durable graphics. Applications include multicolor commercial vehicle graphics, railroad graphics, commercial signs and striping. Graphics subjected to fuel vapors or occasional spills can also be made with this film, and it is ideal for large graphics and graphics applied to corrugated substrates. This flexible film has excellent angularity, retains 90 percent of its retroreflectivity when totally wet, and resists cracking in cold climates. Graphics made with this film have a similar daytime and nighttime appearance, and film 680-85 has a black daytime appearance but reflects white at night.The combined thickness of the film and its adhesive is .007 to .008 inch. The adhesive is positionable and pressure-activated, which allows it to be repositioned during installation until pressure is applied to the film’s surface. The adhesive is clear with silver underneath. The film has a 94 pound, polyethylene-coated paper liner. It applies best to flat, flat with rivets, moderate compound curves, or corrugated surfaces. Recommended substrates include aluminum, FRP and paint. This is not a removable product. Heat helps take off the top layer, but removing the adhesive requires a solvent-based remover. Refer to Instruction Bulletin 6.5 for more details about removal.When used according to written instructions, graphics made with this film are covered by the 3M™ MCS™ Warranty – the most comprehensive warranty in the industry. When used with compatible products, produced by a 3M Scotchprint® Graphics Authorized Manufacturer and applied according to written instructions, this film can be used to produce a Scotchprint® Graphic.Reference the Product Bulletin for more detailed information.

That sounds like a great product; just ordered a roll of the 1/2″ tape from Amazon.

The Sloan Digital Sky Survey

The Sloan Digital Sky Survey (SDSS) is one of the most ambitious and influential surveys in the history of astronomy. Over eight years of operations (SDSS-I, 2000-2005; SDSS-II, 2005-2008), it obtained deep, multi-color images covering more than a quarter of the sky and created 3-dimensional maps containing more than 930,000 galaxies and more than 120,000 quasars.

It is hard not to dream about exploring space when you see what Sloan has to offer.