Singapore Inventors' Development Association (SIDA) 新加坡发明协会
May 03
https://www.youtube.com/watch?v=604OCD-fPZs http://www.closca.co/
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May 01
https://www.youtube.com/watch?v=_jfWI9k60NU
Apr 29
https://www.youtube.com/watch?v=_rWuUUGWAp4
Apr 24
https://www.youtube.com/watch?v=9AInV81vjpE
Apr 05
https://www.youtube.com/watch?v=9puevzYv3dY
Apr 04
https://www.youtube.com/watch?v=dZ2MXm-uYOc
Apr 01
https://www.youtube.com/watch?v=FFsMMToxxls
Mar 29
(16 Sep 1923 to 23 Mar 2015, 3.18am)
Mar 27
https://www.youtube.com/watch?v=IZ__PjmC6Fg
Mar 26
