There are 10,000 fire doors on the Elizabeth Line, including these two at Liverpool Street that have been tested to tolerate a two-hour blaze at temperatures as high as 3,000°C.

The root tips were digested in a pectolytic enzyme mixture [0.1% (w/v) pectolyase Y23 (Duchefa, Haarlem, the Netherlands), 0.1% (w/v) cellulase onozuka RS (Duchefa, Haarlem, the Netherlands) and 0.1% (w/v) cytohelicase (Sigma-Aldrich, Steinheim, Germany)] in 10 mM citrate buffer (10mM tri sodium citrate + 10 mM citrate, pH 4.5) at 37 °C for 1 h.

All layout remodelling and resignalling at Stafford has already been finished; the colour-light signals, with their route-indicators, and the power-operated points are operated from the lever frames of existing signalboxes.

Hecklers disrupted the man's speech.