Technology: Age 17

5 illustrated Technology lessons for Age 17.

A Robot Arm That Corrects Itself In closed-loop control, a sensor measures what the system is actually doing and feeds that value back to a con…
How Routers Pick a Path Data crosses the Internet as packets that hop from router to router until they reach their destination. Distan…
Smaller left, larger right A binary search tree stores keys so that every key in a node's left subtree is smaller than that node's key an…
Binary search tree A binary search tree keeps smaller keys in the left subtree and larger keys in the right subtree. A search sta…
Bionic Eye Pathway A bionic eye helps when retinal cells are lost. A glasses camera sends images to a processor, which passes sig…