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Science Is Fun By Tomas Rosko on Instagram: "“Plasma is better in colour! Watch one of our latest plasma pulses in our ST40 tokamak, filmed using our new high-speed colour camera at an incredible 16,000 frames per second.” “Each pulse lasts around a fifth of a second. What you’re seeing is mostly visible light from the plasma’s edge, glowing pink. The core is simply too hot to emit visible light - hotter than the centre of the sun.” “In this footage, lithium is dropped into the plasma. As it int