What Have We Learned about Technology Applications and Assistive Technology Research? Class 2: Assistive, Instructional, and Administrative Applications of Technology/Spring, 2008. Looking Back…….
What Have We Learned about Technology Applications and Assistive Technology Research?Class 2: Assistive, Instructional, and Administrative Applications of Technology/Spring, 2008
How Assistive Technology Research?do you see this type of evolution in comparison with today’s approach to building on evidence-based practices?How do we continue to scale-up and capture the potential of technology for individuals with disabilities?
1808 Precursor of Braille/raised dots for sending military messages at night
1834 Braille Code developed—6 dot system
1892 Braille Typewriter
1900 Electrical amplifying device for individuals who were hard of hearing
1928 Radios given to citizens who are blind; seeing eye dogs introduced
1934 Printed visagraph—to enlarge print
1947 Perkins Brailler; printing large type books
1953 Megascope: project and magnify printed materials
1960 Teaching machines and programmed learning
1966 The laser cane is developed
1972 Pocket size braille writer
1974 Braille calculator
1975 Talking calculator
Source: Popular Science Monthly, June 1932
BLIND CAN NOW 'SEE' PRINT AND PICTURES
"FOR the first time blind persons may actually 'see' pictures and read newsprint and typewritten letters, through the 'visible.‘
Source: Time Magazine, 1931
Monday, Apr. 27, 1931
The visagraph works as follows: slim beams of light are reflected from a printed page into a selenium cell which translates the blank and printed patches into various electrical frequencies. The currents operate electromagnets which drive pins against a sheet of aluminum. The aluminum progressively becomes embossed with letters as the master light roves across the original page. The blind thereby can feel the upcoming words almost as fast as the eye can see.
N o Low High
that are systematically designed and applied in precise ways