There are two main types of smoke alarm tech, says Raman Chagger, principal consultant at BRE, the Building Research Establishment. Ionisation-based systems use a tiny amount of radioactive material to charge, or ionise, particles in the air which flow between two small plates. Should smoke interrupt that flow of charged particles, the alarm goes off.
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Oil prices were broadly steady in Friday morning trading in Asia, with Brent crude 0.2% lower at $100.29 (£75.09) a barrel, while US-traded oil was down by 0.3% at $95.41.
To be clear, planning as a general practice isn't going away. It's just changing shape. For newer practitioners, plan mode remains the right entry point (as described in Levels 1 and 2). But for complex features at Level 7, "planning" looks less like writing a step-by-step outline and more like exploration: probing the codebase, prototyping options in worktrees, mapping the solution space. And increasingly, background agents are doing that exploration for you.
But with her job as commander, she had to pick up the mantle - she was to be in charge of the shuttle's following flight.