Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 15 - Jul 20
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
Stirling Engine Kit Motor Model DIY Educational Steam Power Toy Electricity Learning ModelStirling Engine Kit Motor Model DIY Educational Steam Power Toy Electricity Learning Model Stirling engines are unique heat engines because of their theoretical efficiency is almost equal to the theoretical maximum efficiency, Called the Carnot cycle efficiency. The Stirling engine is heated by gas expansion, cold contraction generate power. Description: Name: Stirling Engine Hot Air Model Material: metal,glass Color: gold Size: 165x87x95mm Features:
Stirling Engine Kit Motor Model DIY Educational Steam Power Toy Electricity Learning Model
Stirling engines are unique heat engines because of their theoretical efficiency is almost equal to the theoretical maximum efficiency,
Called the Carnot cycle efficiency. The Stirling engine is heated by gas expansion, cold contraction generate power.
Description:
Name:Stirling Engine Hot Air Model
Material:metal,glass
Color:gold
Size:165x87x95mm
Features:
-This is an external combustion engine in which the fuel is burned continuously, and the piston is moved by the expansion of air (or helium or hyd rogen) as a medium, and the expansion gas is cooled in the cold chamber, and the cycle is repeated. Only a small alcohol lamp, you can make it fast rotation and strong power.
-As the external combustion engine to avoid the traditional internal combustion engine of the explosion to do work, in order to achieve a high efficiency, low noise, low pollution and low operating costs.
-The biggest advantage of the external combustion engine output and efficiency from the influence of altitude, very suitable for high altitude areas.
- Aerodynamics are rich in knowledge of physics, single cylinder combustion engine. Engine principle is intuitive, educational toys, teaching experimental equipment can effectively cultivate children's interest in learning can also be used for classroom teaching, more intuitive and easy to understand.
Instructions:
-The engine model on the horizontal position by hand toggle the flywheel to see if smooth, if there is a strong sense of raw astringent, check the connection rod is normal, whether the cylinder oil and dust, and if so, please use toilet paper to erase Not smooth. Toggle the flywheel feel pressure rebound within the cylinder body is a normal phenomenon, the cylinder is sealed.
-The packing bag of alcohol lamp cotton wear into the metal cap lamp.
-Please go to the pharmacy to buy 95% purity alcohol, anhydrous industrial alcohol better. Fill the alcohol lamp to less than two-thirds.
-Alcohol lamp to the alcohol lamp, at the premise of ensuring safety, ignite the alcohol lamp about 2 minutes after the flywheel, until the flywheel automatic operation so far, the whole process of heating, hands may not touch.
-Led lights can be directly into the generator output interface, if not inserted, the exchange can be positive and negative, led a long foot for the cathode.
Note:
-There will be the operation of steam,when the steam too much time, the engine will stop working,
inside and outside the needle often set aside to reduce friction
-Do not rotate the nut too tightly, otherwise the glass is broken, if the piston is cracked,
can be bonded with glue.
-The alcohol lamp wick do not touch the glass, do not get too tight ring
-Pulling the piston connecting rod can not force the front end, because the front
end is easy to break
Package include:
1 x Stirling Engine
1 x Alcohol Burner
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.2 ★★★★★
Based on 136 reviews
Sort
Product Reviews
★★★★★ 5
Finally a Cleanser That Works for My Daughter's Puberty Skin
Scent: Unscented, Size: 3.4 Fl Oz (Pack of 1), Scent: Unscented, Size: 3.4 Fl Oz (Pack of 1)
I ordered this foaming gel for my 11-year-old daughter on the recommendation of our dermatologist. She's at that age where her skin is changing, and we've been struggling with excess oil, shine, and the breakouts that come with it.
Honestly, this is the best face wash we've tried so far. The texture is light and pleasant, it foams up nicely without being too thick or heavy. The scent is very mild and not overpowering, which is great for sensitive skin. After just a few uses, the oily shine on her skin started to fade, and the sebum production noticeably decreased. That means fewer breakouts and less irritation overall. It doesn't dry out her young skin at all. It just gently removes dirt, oil, and impurities without stripping it. No tightness, no redness.
We're really happy with how it's working so far. Will continue using it and update if anything changes, but for now highly recommend for anyone dealing with puberty or oily, sensitive skin.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 6, 2026
★★★★★ 5
Rosacea care
Scent: Unscented, Size: 500ml / 16.7 Fl Oz
I have been using this cleanser for a year. It's a simple unscented cleanser that is part of my rosacea care. No irritation or tightness. When it's on sale I grab a couple. I found that applying it to dry skin first, then adding water, is much more effective than applying it on wet skin. The consistency is a little thin so it's challenging to make it lather. A great all around cleanser for any type of skin.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 16, 2026
★★★★★ 5
Ideal cleanser for sensitive feet
Scent: Unscented, Size: 500ml / 16.7 Fl Oz, Scent: Unscented, Size: 500ml / 16.7 Fl Oz
The Bioderma Sensibio Gel Moussant is a gentle cleanser ideal for sensitive skin. It effectively removes impurities without drying, soothes the skin, and prevents tightness. Its soap-free formula makes it perfect for daily use on face and eyes.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 20, 2026
★★★★★ 5
Gentle, soothing, and perfect for sensitive skin
Scent: Unscented, Size: 3.4 Fl Oz (Pack of 1)
I’ve been using the Bioderma Sensibio Foaming Gel for sensitive skin for a few weeks, and it has quickly become one of my favourite cleansers. Despite having combination skin that’s prone to redness and sensitivity, this gel never dries me out or causes irritation.
The texture is a clear gel that transforms into a light, airy foam — so gentle and refreshing. It rinses off completely without leaving any tightness or residue .
What I love most about it:
• foams lightly yet cleans thoroughly — removes dirt, oil and even light makeup without stripping the skin ;
• unscented, soap-free, non-comedogenic, and pH‑balanced, so it respects my skin’s natural barrier ;
• leaves skin feeling hydrated, soft and calm, not tight or dry .
In my routine, I use this gel morning and evening. It’s perfect for days when my skin is more reactive — calming without being stripping. Even after wearing light sunscreen or daily foundation, my face feels fresh and balanced post-wash.
✅ Gentle enough for daily use
✅ Keeps skin barrier intact
✅ Effective at cleansing without irritation
This cleanser is now a permanent part of my skincare lineup. I definitely plan to repurchase — ideal for anyone seeking a reliable, ultra‑gentle everyday cleanser.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 3, 2025
★★★★★ 5
Gentle, Refreshing, and Perfect for Sensitive Skin!
Scent: Unscented, Size: 500ml / 16.7 Fl Oz, Scent: Unscented, Size: 500ml / 16.7 Fl Oz
I absolutely love the Bioderma Sensibio Foaming Gel! I have very sensitive skin, and most cleansers either dry it out or leave a tight feeling afterward — but not this one. It has a smooth, silky texture that turns into a soft foam and removes makeup easily without any irritation.
My skin feels clean, fresh, and hydrated after every use. I really like that it’s unscented, which makes it perfect for sensitive or allergy-prone skin. Even around my eyes it feels gentle and doesn’t sting at all.
I’ve been using it morning and night for a couple of weeks, and I already notice that my skin looks calmer, less red, and very soft to the touch. A small amount goes a long way, so the bottle lasts a while too.
Overall, this is one of the best cleansers I’ve ever used — gentle yet effective, and ideal for anyone with sensitive skin. Definitely deserves 5 stars!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 11, 2025