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View compareYanzhe Office Thinking Hand Boiler, Glass Science Energy Transfer, Children Science Experiment, Thermometer Spiral Glass Science
Yanzhe Office Thinking Hand Boiler, Glass Science Energy Transfer, Children Science Experiment, Thermometer Spiral Glass Science
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Regular price
$16.30 USD
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$16.30 USD
Regular price
$23.29 USD
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Estimated delivery: 3-5 days(United States), 8-12 days (International).
Return within 15 days after Delivery. Duties & taxes are non-refundable.
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Description
Description
?Hand Boiler ?: Hand Boilers Are Looped In The Artistic Glass Sculptures Containing A Liquid That Will ''Boil'' As Heat Is Transferred From Your Bare Hand. Simply Hold The Large Bulb End On The Bottom In The Palm Of Your Hand And Within Minutes, Your Body Heat From Your Hand Will Cause The Liquid To Rise. Once Out Of Your Hands, It Takes A Few Minutes For The Liquid To Cool Down. Pretty Fascinating Science Toy And An Excellent Demonstration Of Energy Transfer. ?Office Thinking Hand Boiler?: Demonstrate Charles'S Law And Vapor-Liquid Equilibrium. The Colored Liquid In The Boiler Is Comprised Of A Volatile Mixture Of Liquids That Have A Boiling Point Just Above Room Temperature. The Body Heat From Your Hand Causes The Liquid To Boil, Which In Turn Makes The Liquid Evaporate, Turning It To Gas. The Expanding Gas Pushes The Liquid Upwards And When You Release Your Hand, Equilibrium Is Re-Established. The Gas Condenses Into A Liquid Again And Flows Back Into The Lower Bulb. ?Package Include?: 1*Glass Hand Boiler And 1* Safety Hard Color Box.
Shipping Information
Shipping Information
Shipping Information for Toytooth
Packaging & Shipping Protection
All orders are shipped in double boxes and come with full insurance for additional protection. Items are usually shipped within 2-3 working days. We are based right here in the United States, and we use secure shipping methods for your peace of mind. For your protection, we may contact you for extra verification of the payment method.
The product will be delivered to your doorstep, carefully packed to avoid any damage. We understand that privacy is important to our customers, and we aim to provide DISCREET packaging. The product name, description, sender's name, or any details that could hint at the product inside will be encrypted to ensure privacy. The package you receive will be completely discreet.
Note: All orders above $250 will require a signature upon delivery.
Shipping Destinations
We currently ship to the following countries:
| United States |
Spain | Denmark | Slovak Republic | Latvia |
| Great Britain | Poland | Japan | Singapore | Finland |
| Canada | Portugal | Hungary | Lithuania | India |
| Germany | UAE | Australia | Slovenia | Estonia |
| France | Austria | Croatia | Bulgaria | Turkey |
| Netherlands | Belgium | Czech Republic | Luxembourg | Israel |
| Sweden | Italy | Ireland | Saudi Arabia | Switzerland |
Processing Time
Orders are processed within 1-3 business days.
Shipping Methods & Delivery Times
Delivery times are estimates and may vary depending on the customer's location, customs processing, weather conditions, or other unforeseen circumstances.
- Domestic orders: Usually take 3-5 business days to deliver.
- International orders: Usually delivered in 8-12 business days.
Shipping Costs
Shipping costs are calculated at checkout based on the shipping destination and selected shipping method. We offer free standard shipping within the United States.
Customs, Duties, and Taxes
International orders may be subject to customs duties, taxes, and import fees imposed by the destination country. These charges are the responsibility of the customer. Please check with your local customs office for more details.
Order Tracking
Once your order has shipped, you will receive a tracking number via email to monitor your shipment's progress.
Lost or Delayed Shipments
If your package is lost or significantly delayed, please contact our support team, and we will assist you in resolving the issue.
Returns & Refunds
For details on returns and refunds, please refer to our Return Policy page.
For any questions, feel free to contact our customer service team at support@toytooth.com.
Safety & Compliance
Safety & Compliance
⚠️ WARNING (California Proposition 65):
This product may contain chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.
For more information, please visit www.P65Warnings.ca.gov.
Frequently Asked Questions
- Q: How does the YANZHE Office Thinking Hand Boiler work? A: The YANZHE Office Thinking Hand Boiler operates on the principle of heat transfer. When you hold the large bulb at the bottom in your palm, your body heat warms the liquid inside, causing it to 'boil' and rise through the tubes to the top chamber. This demonstrates fascinating concepts like Charles's Law and energy transfer.
- Q: Is the YANZHE Hand Boiler safe for children? A: While the YANZHE Hand Boiler is designed to be a fun science toy, it contains a volatile liquid (ethanol solution) and should be kept out of reach of young children. It is best used under adult supervision, especially in a learning environment.
- Q: Can the Hand Boiler be used for educational purposes? A: Yes, the YANZHE Hand Boiler is excellent for educational demonstrations, illustrating scientific principles such as vapor-liquid equilibrium and heat conduction. It can be used as a teaching prop in classrooms or at home to engage children in science.
- Q: What materials is the Hand Boiler made from? A: The YANZHE Hand Boiler is made from high-quality glass, which not only allows for a clear view of the liquid movement but also gives it an artistic appearance. The base of the boiler is designed to be smooth, making it safe to use on various surfaces.
- Q: How do I care for and clean the Hand Boiler? A: To care for your YANZHE Hand Boiler, avoid using abrasive cleaners that could scratch the glass. Instead, gently wash it with warm soapy water and a soft cloth. Ensure it is completely dry before storing or using it again to prevent any moisture buildup.