2008-11-18
Cary Supalo, a blind biochemist, introduced a group of students and teachers to the tools he is developing to help visually impaired students succeed in chemistry. Supalo and his colleagues managed to make JAWS compatible with the various lab probes created by Vernier Technologies. Thanks to Supalo and his team, more than 125 probes are now able to convert text to speech.
Supalo discussed the Submersible Audible Light Sensor, or SALS. This device consists of a submersible sensor attached to a control box, which contains a speaker. The SALS allows blind students to recognize when a combination of chemicals yields a new result. Since the student is unable to see the reaction, the SALS produces a certain pitch when it is submerged in liquid. When two chemicals combine, a completely different pitch is produced due to the change in light content, indicating to the student a change has taken place in real time.
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