Tom Stanton's supersonic trebuchet breaks sound barrier with gravity alone
On a quiet field somewhere in the UK, a 40-kilogram mass dropped a short distance, spun a carbon-fiber arm past 2,300 revolutions per minute, and sent a 4-gram projectile into the air at 776 miles per hour. That is nine miles per hour past the speed of sound. The basic idea is to hoist a large heavy weight, let it fall down, and then use the lever and sling to redirect that energy into a much lighter projectile.
- ▪On a quiet field somewhere in the UK, a 40-kilogram mass dropped a short distance, spun a carbon-fiber arm past 2,300 revolutions per minute, and sent a 4-gram projectile into the air at 776 miles per hour.
- ▪That is nine miles per hour past the speed of sound.
- ▪The basic idea is to hoist a large heavy weight, let it fall down, and then use the lever and sling to redirect that energy into a much lighter projectile.
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| Original publisher | TechEBlog |
| Canonical URL | https://www.techeblog.com/tom-stanton-supersonic-trebuchet/ |
| Publication time | Sun, 09 Aug 2026 15:08:51 +0000 |
| Retrieval time | 2026-08-09T15:45:41.971Z |
| Last seen | 2026-08-09T15:45:41.971Z |
| Headline source | Publisher (no WeSearch rewrite) |
| Excerpt source | publisher body |
| Excerpt method | First ~120 words (~800 chars) of extracted publisher body, fair-use limited. |
| Summary | WeSearch · cerebras-chat (WeSearch summarizer) |
| Summary source text | contentText |
| Citation coverage | Summary is a WeSearch-generated derivative; primary citation is the original publisher URL. |
| Cluster | lbJ0wkAJzFIb · 1 stories |
| Cluster logic | Grouped by semantic title/content similarity across sources within a rolling window. Same-publisher template collisions are excluded from coverage comparison. |
| Ranking reason | Story pages are not engagement-ranked. Hub feeds use recency, with optional source-diversified chronological ordering (cap consecutive stories per source). No personalized ranking. |
| Publisher visit | Yes — open original |
| Substitutes article? | No — link-out required for full text |
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| Indexing | May the item be indexed (stored, ranked, made findable)? | Allowed |
| Snippet | May a short excerpt of the publisher's text be shown? | Allowed |
| AI summary | May WeSearch generate its own short summary of the article? | Limited |
| Retrieval / RAG | May the content be exposed for third-party retrieval-augmented generation? | Not asserted |
| Model training | May the content be used to train AI models? | Not asserted |
| Commercial reuse | May the content be reused commercially? | Not permitted |
Basis: Derived from the published RSS/Atom feed. Contact: [email protected]. Reviewed: 2026-07-24.
Opening excerpt (first ~120 words) tap to expand
A Falling Weight Just Broke the Sound Barrier with Tom Stanton’s Supersonic Trebuchet By Bill Smith August 9, 2026 0shares Facebook Twitter Pinterest Reddit WhatsApp Telegram Bluesky Threads Baidu OpenAI iconChatGPT Perplexity Google Preferred Source Tom Stanton has spent years chasing a number that gravity itself seemed to forbid. On a quiet field somewhere in the UK, a 40-kilogram mass dropped a short distance, spun a carbon-fiber arm past 2,300 revolutions per minute, and sent a 4-gram projectile into the air at 776 miles per hour. That is nine miles per hour past the speed of sound. For the first time, a purely gravity-powered trebuchet crossed the barrier.
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Excerpt limited to ~120 words for fair-use compliance. The full article is at TechEBlog.
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