Mini WorldLaplace
Plate F12 The Phased Array

Energy, Flight & Sensing

A fusion machine and a jet engine, and the instruments that sense gravitational waves, distant galaxies and the people on the road.

8 plates

Plates 8

  1. Plate F02 Five-Axis Machining Centre ManufacturingGoing further Three straight axes move the spindle, two rotary axes turn the part, and all five move together to cut an impeller from a solid block of aluminium. Open
  2. Plate F06 Tokamak Fusion Reactor EnergyGoing further A tokamak like ITER: eighteen D-shaped superconducting coils round a ring-shaped vacuum vessel, inside which a deuterium–tritium plasma at about 150 million degrees hangs in a magnetic field. Open
  3. Plate F07 Turbofan Engine PowerGoing further A high-bypass turbofan of the kind under a widebody’s wing, a quarter cut away: fan, ten-stage high-pressure compressor, annular combustor, two turbines. At take-off it swallows about 1.2 tonnes of air a second. Open
  4. Plate F08 The Gravitational-Wave Interferometer SensingGoing further Two arms 4 km long measure changes in length more than ten thousand times smaller than a proton. In 2015 it recorded, for the first time, the gravitational waves from two black holes merging. Open
  5. Plate F09 The Webb Space Telescope SensingGoing further Eighteen gold-coated segments make one 6.5 m mirror, and five layers of film keep the Sun’s heat off it. It was launched folded and unfolded itself in space over two weeks. Open
  6. Plate F10 The Harmonic Drive ManufacturingGoing further The strain-wave gear inside a robot joint: an ellipse flexes a thin steel cup, and each turn the cup falls back just two teeth. A 100 : 1 reduction in one stage, with almost no backlash. Open
  7. Plate F11 Lidar SensingGoing further A lidar on a car’s roof times light: 6.67 nanoseconds there and back is one metre. 128 beams spin, and the street around turns into hundreds of thousands of points with coordinates. Open
  8. Plate F12 The Phased Array SensingGoing further A flat panel holds a thousand small antennas. Let each send a moment after its neighbour and the beam leans to one side. No motor: the direction is set by timing alone. Open