By 4 poking speakers with pencils, by 7 burning raw sulphur to investigate the blue flame & burning holes in test tubes, by 8 taking photos of bugs & crystals d

By 4 poking speakers with pencils, by 7 burning raw sulphur to investigate the blue flame & burning holes in test tubes, by 8 taking photos of bugs & crystals down microscopes, by 9 re-wiring light switches into 240 volts, by 10 hacking electric motors with propellers, by 12 building & flying balloons & model aircraft & programming.