The Apollo spacecraft used for lunar missions in the late 1960's and early 1970's was really two different spacecraft, the Command Module (CM) and the Lunar Module (LM). The CM was used to get the ...
Abstract: Sign Language is the elementary communication media for Deaf & Mute (D&M) people. On the other hand, it seems too tenacious for the general people to understand this language. In order to ...
Abstract: In the whole world, around 7% of people have hearing and speech impairment problems. They use sign language as their communication method. As for our country, there are lots of people born ...
Can you chip in? As an independent nonprofit, the Internet Archive is fighting for universal access to quality information. We build and maintain all our own systems, but we don’t charge for access, ...
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