Stirling Engine Kit Tractor Vacuum Engine Motor Model for Gift Collection - Enginediy
SKU: 40172344827

Stirling Engine Kit Tractor Vacuum Engine Motor Model for Gift Collection - Enginediy

Sale price$179.99 Regular price$199.99
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Description

Stirling Engine Kit Tractor Vacuum Engine Motor Model for Gift Collection - EnginediyStirling Engine Tractor Vacuum Powered Tractor Engine Ideal Gift for Collection Enginediy Working Principles: The tractor vacuum engine heat dissipation method is air cooled, and the engine is cooled by natural cooling after the air contacts the surface of the heat sink . The closed cylinder should be filled with a certain volume of water . When the liquid is heated for expansion and compressed by cold compression, it will generate power, so that the

Stirling Engine Tractor Vacuum Powered Tractor Engine Ideal Gift for Collection - Enginediy

Working Principles:
The tractor vacuum engine heat dissipation method is air-cooled, and the engine is cooled by natural cooling after the air contacts the surface of the heat sink .
The closed cylinder should be filled with a certain volume of water . When the liquid is heated for expansion and compressed by cold compression, it will generate power, so that the tractor can move.

Features:

1, Novel Design: The Stirling engine is in the shape of a retro tractor, special and unique.
2, High Craftsmanship: The whole engine are made of metal, which is sturdy and durable, not easy to wear, and looks more retro after coloring. Pure Handmade, exquisite.
3, Educational Toy: Through hands-on operation, you can understand the stirling engine principle more intuitively by observing the whole engine running process, and deepen your interest in physics (this principle will be learned in the physics book of junior high school).
4, Ideal Gift Option for Many Applications: With competitive price and nice looking, the engine has a wide range of application as, great gift for Kids' science project, Physical/mechanical learning, teacher’s Demo props on the class, birthday gift for friends, families, parents, kids, etc. Many of our customers come from school, colleague, etc.

Description:

Item Name: Tractor Vacuum Engine
Material: Metal
Product Size: 18 x 8 x 12cm
Product Weight: 1100g
Packing: Standard Express Box

Attention:

1.After using it, please let the engine natural cool.
2.Do not touch the alcohol burner, burned tube or the metal to avoid burns.
3. 95% alcohol (self-prepared) should be used in the operation. Water, kerosene, gasoline, lighter oil, and liquor should not be added.
4.The Stirling engine model is suit for people over 14 years old. Operate under adults' supervision.

Packing List:

1 x Tractor Vacuum Engine

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Exchange/Return Notes
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SKU: 40172344827

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4.2 ★★★★★
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w+
Lexington, US
★★★★★ 3
Good points, but too verbose and in the clouds at times.
Format: Kindle
This book has great points and analysis of trends, and a sensible outlook of what they might lead to. If you already understand the main ideas in this book, it's a good refresher and will solidify your current understanding, but may not really lead to any new "mindblowing" revelations. At times, his head is too in the clouds, and his age shows with predictions that read like bad 1960s sci-fi with things like "computorium" "gray goo" and "nanobots". While his overall points stand strong, some specific technologies he thinks will take off don't seem to have any basis or proof of concept in the real world and might be dead in the water, think "solar freakin roadways" style. He is also very full of himself, repeatedly gloating to the reader of all the "predictions" he made over the years that came true. The biggest weakness of this book is by god does he need an editor, it is way too verbose because the information is not organized well and he repeats himself A LOT. The chapters read like independent blog posts rather than a book due to how repetitive some of his points and information is. Often factoids and paragraphs are bizarrely repeated nearly verbatim pages later. But overall, it's a solid read and those uninitiated to the ideas in this book should absolutely heed their importance.
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Reviewed in the United States on January 10, 2025
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chris bickford
Carnegie, US
★★★★★ 5
Ray at best
Format: Hardcover
Great ai know how
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Reviewed in the United States on May 20, 2026
L
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Long Beach Native
Massapequa, US
★★★★★ 4
Audiobook has TERRIBLE narrator; book is very techical
Format: Hardcover
So this is a fascinating book -- the author has an incredible depth and breadth of knowledge in a vast array of technical (and medical) subjects. Note this is a much more technical book than your typical science book intended for the educated layperson. That's a big plus for me, but others might be put off by the level of detail. The main fault with the book is the audiobook's narrator, Adam Barr. He has a deep voice that is easy to understand, but he is just about as dull as can be, sounding as if he's reading the ingredients on a can of soup. I ended up buying the hardcover version of the book because the audiobook could not hold my attention -- because of the narrator, not because of the content, which is amazing. I wish more narrators would take a page (ha ha) from talented pros such as Ray Porter and Wil Wheaton. Just because this book is nonfiction doesn't mean it can't be read with heart, as if the reader was speaking to me personally, with enthusiasm, and not just reading words out loud.
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Reviewed in the United States on November 24, 2024
J
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James Walker
Chelsea, US
★★★★★ 5
The Final Warning
Format: Kindle
No more heads up after this one guys. Ray is not known for missing futurological insights. He’s placed many predictions within this work and it’s my belief that they will occur even sooner than he imagines. That said, the time for comfort with our current way of living is over, and this book functions as the last glance of insight to carry you through with knowledge of what could be. Without it, you are very likely to be entirely blindsighted. The world is changing much faster than the vast majority of people realize. Even those paying close attention to technology. Learn what you can do you can prepare. This book is likely the best way to get ahead of the curve, and adds many new concepts and refinement than the first in the series
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Reviewed in the United States on December 24, 2024
S
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Steve
Natrona Heights, US
★★★★★ 5
Superior purchase
Format: Hardcover
Book was in better condition than was advertised. Book was delivered earlier than expected. Book was packaged very very well. Excellent transaction and experience!! Will look forward to purchasing items from this seller in the future! Added bonus-reading the book was a great and thought provoking experience.
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Reviewed in the United States on May 9, 2025

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