- Syringe-injectable electronics: A Nature Nanotechnology paper describes a 2-D mesh with 16 recording/stimulating elements that can be rolled up, injected through a 100 µm needle into mouse brains, unfurl to interface with neurons, and scale to hundreds of devices for wireless recording in freely moving animals.

- Stanford “dancing droplets” experiment shows spontaneous sorting by solute concentration on chemically patterned glass, offering a passive microfluidic computation platform scalable to sub-nanoliter volumes.

- The Planetary Society’s LightSail test mission successfully deployed its 32 m² solar sail in low-Earth orbit, validating deployment mechanisms for a full-scale solar-sail flight planned for 2016.

- Bitcoin redesign discussion proposes replacing block-size heuristics with per-transaction mining and Hashcash-like anti-spam, noting the community’s shift from launching alt-coins to modifying Bitcoin itself.

- Elements Alpha sidechain (sidechain.fairlystable.org) is live with 60-second blocks (turbo 20-second mode overnight) to test peg-in/peg-out mechanics and federated consensus; users report “Withdraw proof validation failed” errors.

- High-altitude-balloon experiment ideas include evolving UV- and temperature-resistant mold strains by exposing successive generations to near-space conditions and testing polymer degradation of high-strength tethers (UHMWPE, nanocrystalline cellulose).

- Channel members debate the absence of a “make check”-style automated unit-test framework for physical designs, noting fragmented checks like PCB design-rule checks, CFD validation, and 3-D-printing overhang tests.

- Shared resources: Purdue CS lecture PDF on procedural-building grammars, transcript of Gregory Maxwell on sidechains/Elements, and a Reddit thread critiquing Wikipedia decentralization arguments.