SKU: 56156380587

Adjustable Speed Stirling Engine Model Toy with Vertical Flywheel Science Experiment

Sale price$71.99 Regular price$79.99
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Description

Adjustable Speed Stirling Engine Model Toy with Vertical Flywheel Science ExperimentAdjustable Speed Stirling Engine Model Toy with Vertical Flywheel Science Experiment note: flywheel color is random. The estimated shipping time is in February 2023. Features: . Novel Design: The design of this Stirling engine model is novel and unique, with a simple and exquisite shape, and a sophisticated wooden base, which shows more high end taste. The top knob can adjust the amount of air conduction to control the speed of the Stirling engine,

Adjustable Speed Stirling Engine Model Toy with Vertical Flywheel Science Experiment

note: flywheel color is random. The estimated shipping time is in February 2023. 

Features:


.Novel Design: The design of this Stirling engine model is novel and unique, with a simple and exquisite shape, and a sophisticated wooden base, which shows more high-end taste. The top knob can adjust the amount of air conduction to control the speed of the Stirling engine, which is easy to observe the dynamics of the piston and bring more good look.
.High Quality: The main parts are made of aluminum alloy and brass, which are sturdy and durable. The heating cylinder is made of quartz glass with low expansion coefficient and high temperature resistance; fine workmanship, perfect details, and a combination of texture and beauty.
.Fuel: 95% alcohol (need to be prepared by yourself), pay attention to not add water, kerosene, gasoline, lighter oil, liquor, etc.
.Starting Method: Place the Stirling engine model on a horizontal table, add two-thirds of 95% alcohol to the alcohol lamp, ignite and heat for 30 seconds, then turn the flywheel, and the engine can run.
.Working Principle: The Stirling engine outputs power through a cycle of cooling, compression, heat absorption, and expansion of the air in the cylinder.
.Use Significance and Value: Through hands-on operation, you can observe the operation process of the entire engine, understand the working principle of the Stirling engine more intuitively, and deepen your interest in learning physics.
.Gift: Its superior quality and exquisite appearance also make it have a high collection value, can be used as a high-end desktop decoration, can also be used as exquisite gifts to give back to others.
.For Age: 14+

Specifications:

.Color: As Shown
.Material: Metal + Wood + Quartz Glass
.Product Dimensions: 10 x 10 x 10cm
.Product Weight: 350g
.Package Dimensions: 15 x 12 x 12cm
.Package Weight: 380g
.Packing: Box

Package Content:

.1 x Stirling Engine Model

Shipping Notes
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Exchange/Return Notes
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SKU: 56156380587

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emma
Whiting, US
★★★★★ 5
Comfy and supportive
Size: 36B, Color: Beige
the fit of this bra is amazing, but i did found out i’m a cup bigger and i’ll be ordering a new size, i can tell this bra is perfect! i’ve been looking for a bra that’s soft, comfy, but also supportive and creates a natural appearance. the durability and quality of the bra seems great, it seems strong but i will update if otherwise. the underwire keeps the shape of the girls but it feels like there’s nothing there! usually i have to go to the restroom a few times a day at work to readjust, but this bra held in place. obviously when leaning over or stretching a bit you do have to readjust, not as much as other bras though. like the description and photos show, there is no padding. in a t-shirt it may matter but i mostly wear sweatshirts and graphics :)
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Reviewed in the United States on April 12, 2026
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Megan Mitchell
Lowell, US
★★★★★ 5
Comfortable, supportive, and well-made
Size: 36DD, Color: Brown Purple
I absolutely love this bra. It fits great and is so comfortable. I forget I’m even wearing it. No adjusting it during the day, ever. Soft. Beautiful color. Just absolutely love. Coming back to buy several more in different colors.
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Reviewed in the United States on May 17, 2026
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Larry Harris
Chelsea, US
★★★★★ 4
wash carefully
Size: 38F, Color: Sargasso
Loved this bra so much that I immediately ordered a second one, but the wire broke through on the first wash. Still love it and will probably repurchase again because the fit is perfect, but if you're like me and just throw your bras in with the rest of your clothes, be sure to wash them on a delicate cycle! Other than that this is a fantastic bra. Good price, true to size, looks great and is super comfortable!
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Reviewed in the United States on March 23, 2026
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Kindle Customer
West Palm Beach, US
★★★★★ 5
Ordered 3
Size: 44C, Color: Black
Great bra, pretty true to size, comfortable. Ordered one in fall and tried several other name brand underwire bras (lane bryant, Victoria Secret, Bali, Torrid, Hanes), returned most of them and came back for two more colors of this brand that I’d never heard of before. The material is nice, they fit well, I wash in cold on delicate and hang dry: so far so good. I normally take a 42C and went 44 for these. I think a 42 probably woulda been ok (I’m on the middle hook) but someone said they ran small. I’m not sure of that but keep it in mind if you’re maybe between sizes.
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Reviewed in the United States on May 21, 2026
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Amazon Customer
Lowell, US
★★★★★ 5
The BEST BRA for big bewbs!
Size: 36G, Color: Black
I've been a fan of Delimira for a while - it's hard to find a well made, comfortable, breathable bra for larger cup sizes at a price that doesn't require taking out a mortgage to afford it. I love this bra. It fits well, it's comfortable, it doesn't get hot, it seems really durable, and it's...sturdy. The underwire is not annoying, and while it's not the cutest bra, it's also not the most matronly bra I own. I have it in all three available colors and will 100% buy more colors should they ever release them.
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Reviewed in the United States on May 7, 2026

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