Link dump 2009.05.10

From the four corners of the Web:

• Fukitorimushi: Autonomous floor-wiping robot
• Magic and the Brain: Teller reveals the neuroscience of illusion
• 8 awesome things you can implant into your body
• The Singularity comes to Denny's
• Laser-controlled humans closer to reality
• Read/write brain electrodes getting smaller and smarter
• Gene discovery may lead to new male contraceptive
• Virtual unreality