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A Clojure/conj 2014 talk by Lucas Cavalcanti and Edward Wible on four uses of Datomic. They cover HTTP caching, audit trails, mobile database sync and authorization, drawing on the immutable transaction log.

CuriousMarc powers up a vintage HP 5061A cesium beam clock and explains both the quantum principle and the HP implementation in detail. It is part of a longer atomic clock series.

Dr. Russell Barkley lectures on the neuroanatomy of ADHD and how to treat it, linking executive function and working memory to the disorder. It is part 3 of a CADDAC series.

David Nolen presents Om Next, the redesign of the ClojureScript Om library, drawing on Relay, Netflix's JSONGraph and Datomic. He covers the tradeoffs in handling the client-server boundary over immutable data.

Stuart Halloway introduces REBL, a graphical, interactive tool for browsing Clojure data, extracted from Datomic tools. The talk is from Clojure/conj 2018.

Max Brunsfeld of GitHub presents Tree-sitter, a parsing system for programming tools that supports incremental, error-tolerant parsing. He demos its integration into GitHub.com and Atom for syntax highlighting and code navigation.

Rich Hickey's JaxConf 2012 keynote examines what values are and why immutable values matter as information systems grow more complex and data gets bigger. It contrasts places with values and builds the case for immutability.

Vsauce asks how many holes a human has and uses topology to show the answer depends on what counts as a hole, with animations and expert input.

Kelly Starrett's Talks at Google presentation on staying healthy while desk bound, mixing anatomy and practical mobility advice. It shows how to set up a desk and sit and move to avoid pain.

An F8 2015 talk touring the tool-chain Facebook uses to let thousands of engineers build mobile apps, including its move to Mercurial, an Atom-based IDE and continuous integration.