What's the difference between pyrotechnics and pyrotechny?

Pyrotechnics

Definition:

(n.) The art of making fireworks; the manufacture and use of fireworks; pyrotechny.

Example Sentences:

(1) Leadership is not always about pyrotechnics at EU summits or staying one step ahead of the posse.
(2) It wasn’t just that she was overawed by the spectacle, although she was: stuff I took for granted – lasers, pyrotechnics, confetti cannons, all the usual bells and whistles of a big pop show – were a constant source of overwhelming sensory overload.
(3) Breathtaking motorbike stunts, laser effects, rock music and pyrotechnics: the story of the second world war has never looked so sexy.
(4) That the Turks shot down the jet and did so within 17 seconds – with the president, Recep Tayyip Erdoğan , saying he gave the order to fire himself – suggests very strongly they were waiting for a Russian plane to come into or close enough to Turkish airspace with the aim of delivering a rather pyrotechnic message.
(5) KC look ready to lay siege - but they need to be careful not to be caught on the break... 2.11am GMT 1 min It's very misty inside the Cauldron, but that's a result of a lot of pre-game pyrotechnics.
(6) Sated by three years of Special One pyrotechnics, the British press might be ready to be charmed by Ramos' brand of quietly pithy humour.
(7) Conventional wisdom suggests that Manchester United's defence is the rock on which their serial title successes have been built, the reliable platform that allows all the pyrotechnics up front to take place.
(8) The method used here could be applied to other pyrotechnic mixtures which give rise to complex mixtures of products.
(9) No verbal pyrotechnics here, nothing to challenge a conservative aesthetics biased against the house of fiction itself.
(10) But officials at Peta were much less happy with Beyoncé's half-time appearance – not because of the pyrotechnic electric guitar, the subsequent power outage , or even her decision to skip the song, If I Were a Boy.
(11) We also don't know what type of pyrotechnics were used."
(12) Gunpowder was difficult and dangerous to ignite at sea so, using pyrotechnic technology, Coston found a way that the flares could be hand-held and incorporate an ingenious self-igniting device.
(13) The Gavin & Stacey star showed no sign of going through the motions, interrupting Prince on-stage to take a selfie – which he subsequently tweeted – and using Arctic Monkeys' pyrotechnics to set his arm alight, albeit as a joke.
(14) Past outlandish displays from the American have included full facial masks, exploding bras and pyrotechnics.
(15) 8.34pm: From the emails: Susan Smillie - "The person responsible for the pyrotechnics on stage at the brits toneet is the nephew of Henry Cooper, he's called Alex Cooper (he works with my partner).
(16) In his youth Peter Brook was famed for his pyrotechnic dazzle.
(17) Click here to watch video Given its huge success and indeed the hullaballoo that surrounded its release – the snatches of it dropped into ad breaks during Saturday Night Live, the rapturously-received premiere of the video at the Coachella Festival – there's something appealingly low-key and unassuming about Get Lucky itself, particularly in the context of current pop music: no vocal pyrotechnics, no chorus signposted by a huge instrumental breakdown, and – a short burst of vocoder aside – none of the sonic trademarks of Daft Punk records that have subsequently become the sonic trademarks of noughties pop ("gimmicks that didn't used to be gimmicks," as Thomas Bangalter wryly described them).
(18) It appears that cases occurred only where this oily lubricant was used to manufacture near submicron-sized pyrotechnic flake (ie, United Kingdom, Germany, Sweden), but never where similar flake has been manufactured for almost a century using polar lubricants.
(19) The standard criticism of Wallace's work is that for all its peerless pyrotechnics, it lacked heart.
(20) Metallica offered, in many ways, the most stripped-down show of all – though they had screens, they didn't have the enormous pyrotechnics and effects of their traditional stage show.