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 hydr ogen) as a medium, and the expansion gas is cooled in the cold chamber, and the...

Description: Shape: Disc Round with eyebolt ring;  Magnetic face: 50mm * 50mm (Dia. * High );  Thickness: 10mm;  Magnetizing direction: the plane of N S poles;  Plating: Ni-Cu-Ni ( Nickel );  Material: NdFeB;  Color: Silver;  Quantity: 1pc;  WARNING: We would not recommend this magnet be used by children under 8 without supervision!;    Tip: 1, Strong magnets should Keep away from Ironware and some  easily magnetized iron products, such as monitors, bank cards, computers, televisions, mobile phones and other.  2, Strong magnets should be stored in a dry, heated environment, and need to use of plastic, wood, cardboard, foam to separated and wrapped.  3, Magnets might be interested in water meter ,Electric meter, gas meter and some metering equipment exist some inaccurate affect (Such as : if magnets placed near  the meter, the meter will slow down).     Package included: 1 X Strong Disc Round Neodymium Magnet

Features: -100% brand new with high quality.  -Origin of the story: The birth of a single-cylinder engine car, on January 29, 1886, Carl Friedrich Bentz applied for a patent for a car invention from the German Patent Office. On November 2, 1886, the patent...

Features: -Material & Workmanship: Made of metal materials, CNC precision casting process, aluminum alloy oxidation, collection of crafts level of exquisite work. 249 parts were polished by professional abrasive tools, which perfectly interprets the wisdom of human creation and yearning for the great industrial...

Features: -Origin of the story:The birth of the steam car: In 1928, the French used the steam traction car made by Quar.At this time, the competition between the steam car and the internal combustion engine car has already been determined. The future transportation is...

Kingmagic Hardcover Golden Magician Magnetic Ring Stainless Steel Magic Prop.    Description: Material: Stainless steel;  Pattern: Engraved, Round;  Feature: Magnetic;  Ring Diameter Size: App 20mm, 19mm,18mm;  Weight: App 30g;    Package Includes: 1 x  Magnetic magicians ring (Please choose the one suitable for you); ...

Features: Classics Series Packaging: Distinctive unbleached cardboard window box, printed with machine photo and specifications. Molded PVC blister protects model within the package. Cardboard outer box provides additional protection.     Description: Item Name: Diesel Core Classics Series Engine Model;  Size: Model size: 11.5*8*10.5cm;  Base...

Features: Unique Model: This Stirling engine model adopts α-type double-cylinder double-piston rocker arm linkage structure, with a small generator and LED lamp beads, and is equipped with a voltage digital display meter. The overall design is very cool and eye-catching.  Science Educational Toys: LED...

Upgrade STEM DIY Mini Air Stirling Engine Generator Motor Model Educational Power Engine Toy.    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 hydr ogen)...

LED Colorful Solar Powered Light Garden Spotlight Landscape Floated Light.    Principle: By the top of the solar panels is converted into electrical energy, Bai Tianguang converted into electrical energy through solar panels is stored in rechargeable batteries, wait until dark, solar panels can...

Feature: The blue flash light will turn to green when you touch it.    A perfect decoration for homes, parties, cafe, bars & restaurants etc.  Beautiful combination of Neon gases which help create Plasma and Neon have been brought together to form a visual feast.  Enjoy the amazement when the electricity follows your finger tips across the 5-inch glass ball.  Small enough to not take up too much desktop space.  Big enough to amaze your co-workers with its awe inspiring light show.    Description: Weight: About 254g;  Power: DC 5V 500mA;    Package Included: 1 x USB Plasma Light Ball (Red Light);  1 x USB Cable 

Description: Scale: 1:32; Color: Black; Size: 20.5 x 7.5 x 5cm / 8 inch x 3 inch x 2 inch; Material: Diecast; Car doors can be opened; Pull back,Free wheels; With sound and light (apply the batteries correctly, and then open the door, or press the...

Features: 1. . This low temperature stirling engine, runs on a hot cup of water (Do not put it above a candle or other fire), could be a great conversation starter at work and unique gift to families or friends or for class demonstrations.  2....

Feature: This Low Temperature Stiring Engine could be a great gift for your friends or families.  It is almost ready to run: after the installation, put it on a cup of hot water, then it will run itself.  Low Temperature Stirling Engine.    Description:...

V8 Combustion Engine Model Building Kit STEM Toy.    Features: -LET YOUR CHILDREN GET HANDS ON with the Playz Kids DIY Toy V8 Combustion Engine Model Kit THAT WORKS! This mini Imitations of a classic four cycle internal combustion gasoline car engine teaches young minds all...

Diecast Alloy Model Car Door Openable DMC-12 Delorean Back to the Future Time Machines Metal Toy Car for Kid Gift Collection.    Features: 1/24 model scale;  Environmental protection material;  The four wheels of the aircraft version can be deformed by sliding rods at the...

Features: -Using mold steel manufacturing, solid and firm;  -Flywheel , fine milling, texture and beauty double combination;  -Rod made of stainless steel manufacturing;  -Dynamic link sets of aluminum alloy cylinder, power cylinder and the power  piston is good material fine grinding surface of special...

Live Steam Mini Engine Single Cylinder Engine Model.    Description: Item: Mini Steam Engine;  Size: 43×27×56mm(L*W*H);  The flywheel diameter: 21.5mm;  Shaft Diameter: 2mm;  Cylinder diameter: 6mm;  Weight: Approx. 45g;  Material: Metal;  Age: +14;  Usage: 1. Small boilers can be connected to the normal operation...

Description:Strong magnetic NdFeB; Circular Disc Magnets are made from Neo Neodymium Magnet material and have strong magnetic performances. Super strong Rare-Earth magnets - once they get stuck with each other, they are hard to break apart. You should be careful to break apart not  use strong power  to...

Description: Product Number:FD4;  Size: Length 71MM, width 48MM, high-63MM;  Weight 57G.  Shaft diameter 2MM.    This is a GREAT running Dynamo. It will generate 12 volts at about 1 amp if you drive it with your steam engine,or if you apply up to 12...