00:19
automatic public water tap 💦
08:42
Mana 👑
04:04
Mana 👑
02:02
Mana 👑
00:49
crazy experiments
00:49
crazy experiments
00:55
krishna
01:16
Science project
03:28
Degradable plastic making
00:22
Smart sanitizer
01:26
Speed breaker from power produce
00:14
Smart helmet
00:31
Door operated by sanitizer
00:55
Engine operated by alcohol sensor
00:24
Bike security system
00:30
Laser security system
00:20
Automatic railway gate
00:46
Water soaking roads and automatic street lights
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