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Description
Low Temperature Difference Stirling Engine Car Model Gift Collection Science STEM ToyHot Water Powered Low Temperature Stirling Engine Model Vehicle Toy Features: Working Principle: Low temperature Stirling engine operate with a focus on temperature differences, converting heat into mechanical kinetic energy. How to Use: Filled with hot water at least 70 into the bottom metal drawer, gently flip the flywheel and the car model will start to move. The greater the temperature difference, the more power it will have. Special Steering
Hot Water Powered Low Temperature Stirling Engine Model Vehicle Toy
Features:
- 【Working Principle】: Low temperature Stirling engine operate with a focus on temperature differences, converting heat into mechanical kinetic energy.
- 【How to Use】: Filled with hot water at least 70℃ into the bottom metal drawer, gently flip the flywheel and the car model will start to move. The greater the temperature difference, the more power it will have.
- 【Special Steering Wheel Design】: The engine model designed with steering wheel, when it starts to work, it can not only move forward and backward, but also make simple turns through the steering wheel, giving you an interesting and fun experience.
- 【High Quality & Safety】: The wheels, steering wheel, seat are made of full copper material; The flywheel parts are made of stainless steel; The rest parts are made of aluminum alloy, durable to use. Safe for children, no need to fire alcohol burner.
- 【Wide Application】: Transparent cylinder and piston, make it straightforward for you to observe the movement. Help student to better understand this physics theory. It is mainly used in classroom teaching and laboratory experiment. A best choice gift to students, teachers, children, friends and colleagues.
Specifications:
Material: Copper + Aluminum Alloy + Stainless Steel
Item Size: About 25.7 * 10.5 * 13.0cm / 10.1 * 4.1 * 5.1in
Item Weight: 750g / 26.5oz
Package Size: 28.5 * 16.8 * 19.7cm / 11.2 * 6.6 * 7.8in
Package Weight: 1007g / 35.5oz
Package List:
1 * Stirling Engine Model
2 * Rubber Band
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4.8 ★★★★★
Based on 23 reviews
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Product Reviews
★★★★★ 5
delightful read
Format: Kindle
What a delightful read. The characters are awesome, the plot was so good, I loved it. I was intrigued and it kept me wanting more. Told in multiple pov, the book sucks you in and doesn’t let go. I cannot wait to read the next book.
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Reviewed in the United States on January 30, 2025
★★★★★ 4
not bad
Format: Kindle
I loved the plot of this book. The characters just didn’t have a lot of depth. The connections and “love” just weren’t communicated very well in the writing. The author didn’t write the sweet psycho trope very well at all either. Lachlan was just a mess of a character.
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Reviewed in the United States on November 17, 2023
★★★★★ 5
A Beta Worth Rooting For
Format: Kindle
In Spare, Violet Fox flips the omegaverse on its head, giving us a Beta heroine determined to make her mark. Joining the Beta Trials to support her sick father, she's thrown into a pack that doesn't want her, especially the possessive Alphas.
But here's the twist: their sweet Omega turns out to be her scent match. Cue the angst, forbidden tension, and a slow-burn romance that will make your heart ache in the best way.
Violet Fox delivers an emotional, refreshing take on the genre, proving Betas aren't "spares." They're stars.
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Reviewed in the United States on January 10, 2025
★★★★★ 5
Beta, Alpha, Omega oh my!
Format: Kindle
Omegas are precious and given to Alphas & their packs... but the Betas want in too. To this end, the Beta government is rolling out its trial of assigning a Beta to each Alpha-Omega pack. But forcing a Beta into a pack where they are not wanted will not end well... Of course, no one expected the Omega to fall for the assigned Beta. Great read and cliffhanger
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Reviewed in the United States on February 15, 2025
★★★★★ 3
A familiar story, just with…..less.
Format: Kindle
So, as other reviewers make clear, this is very similar to Pack Darling and The Beta. It’s much closer aligned with The Beta, in plot and maybe more like Pack Darling with characters.
That being said, I don’t hate this…..but it wasn’t great either. It’s both books mentioned but just….less. Less angst, less emotion, less feeling. The plot feels very half fleshed out, and the “bad guy” feels underwhelming. I didn’t really feel any real emotions from and of the male leads, except maybe Oliver. The others fell sorta flat for me. And Mika makes herself out to be this big bad ass straight outta training and then we never see it from here again with the one fitting room incident as the exception.
SPOILER:
The whole, “Oh, I’m actually probably an Omega, but I don’t wanna be but I do actually wanna be but no one can ever know my secret that I do nothing to hide “ thing fell so flat. She never commutes to believing she was secretly an omega, but also mentions her “secret” a lot. It just felt so manufactured.
I’m intrigued enough to read part 2 and see how the author closes everything out, but this is not one I’ll recommend or ever come back to.
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Reviewed in the United States on February 13, 2024