Sign up with

Username Placeholder

Email Placeholder

Choose image or drag one here

Create a password Placeholder

Password Confirmation Placeholder

Bio

If you cannot use the ReCaptcha to verify you are not a bot, use this alternative verification.

By signing up, you agree to the Code of Conduct, which applies to all online and in-person spaces managed by the Public Lab community and non-profit. You also agree to our Privacy Policy.

As an open source community, we believe in open licensing of content so that other members of the community can leverage your work legally -- with attribution, of course. By joining the Public Lab site, you agree to release the content you post here under a Creative Commons Attribution Sharealike license, and the hardware designs you post under the CERN Open Hardware License 1.1 (full text). This has the added benefit that others must share their improvements in turn with you.

or Log in

Preliminary Sample

by Livioguerrero | almost 12 years ago | 3 | 1

From Left to Right:Sample color,Sample clarity,Sample Fluorescing.

The sample the was taken from the areas around Newtown Creek in Brooklyn. Our project involves testing the samples for pollutants to then design a means of planting plants that will clean the pollutants found.

ABSOLUTE OPTICAL CALIBRATION USING A SIMPLE TUNGSTEN LIGHT BULB

by xiphmont | almost 13 years ago | 2 | 0

The attached paper shows how to use a tungsten-filament incandescent (a commonly available lamp that provides a particularly close physical approximation to an ideal black-body radiator) for absolute photometric calibration of a spectrophotometer.

The paper presents results of a physical experiment that achieved accuracy of 15% (and suggests the data was worse than it would otherwise have been due to stray light contamination).

Oil testing kit Blog

Preliminary Sample

ABSOLUTE OPTICAL CALIBRATION USING A SIMPLE TUNGSTEN LIGHT BULB