Hacker News on 24 June 2017

• Show HN: Insect – a high-precision scientific calculator with physical units
• Cooling the tube – Engineering heat out of the Underground
• SpaceX Successfully Launches and Lands Second Reused Rocket
• TensorFlow-World: Simple and ready-to-use tutorials for TensorFlow
• Wikimedia Foundation v. NSA
• The CTO Journey at a Small Startup
• Windows 10 Without the Cruft: Windows 10 LTSB (Long Term Servicing Branch)
• Sans Bullshit Sans: leveraging the synergy of ligatures (2015)
• How FireWire came to market and ultimately fell out of favor
• The slow death of the electric guitar