As an Amazon Associate I earn from qualifying purchases.1. ROSG
Teaching Help Kit, Physical Demonstrator for Hydrogen-Oxygen Batteries, ROSG Equipment for Physics Experiments, Hydrogen Fuel Cell Demonstrator
ROSG - Please use only deionized water to ensure that the operation is under the correct instructions to avoid accidents. The hydrogen in the electrons flows from the anode to the cathode through an external circuit, the electrons, thereby generating current.
In high school chemistry hydrogen fuel cells, the main components of proton exchange membranes, electrodes and catalysts are imported materials.
Will not release harmful substances. The instrument has stable performance and is very suitable for teaching demonstrations. You can use it for educational purposes in experiments. Fuel cells are electrochemical devices that can convert the chemical energy of hydrogen and oxygen into electrical energy without being polluted.
At the cathode, protons and oxygen in the air combine to produce water, which is the main by-product of fuel cells. Pem fuel cell fuel cell proton exchange membrane is made of two electrodes cathode and anode connected by a polymer membrane.
| Brand | ROSG |
| Manufacturer | ROSG |
| Part Number | YWL05240856 |
2. NIVOK
NIVOK 18-inch Professional Darts Competition Games, Traditional Double Wooden Door Panel Electric Dart Machine with LED Display Automatic Scoring Dart Board, Electronic Dart Board
NIVOK - It is also an excellent gift for boys, bar, birthday party, living room, girls and children. Scope of application, kitchen, energy saving and environmental protection. The dart feathers are scientifically designed. Let it enter the bedroom, a very classic electronic dart game board, counter, etc.
Scoring is the enthusiasm for the game to continue. The pinholes of the spider web are even and dense, making it easier for your darts to attach to the dart board. Humanized operation, and the digital music score is clear at a glance.
The operation buttons are simple and easy to understand, the operation panel of the dart board is LED display, and a variety of game modes make your indoor activities more interesting. The electronic dart board is an automatic scoring dart, which uses a very sensitive electronic touch sensor to make the game more fair and accurate.
After tens of thousands of dart throwing experiments, the dart angle is designed according to scientific data, so that your darts can avoid ballistic deviations during flight and improve the accuracy of dart throwing. The dart head adopts a soft design, which can prevent children from being injured by accident and avoid wall damage.
| Brand | NIVOK |
| Manufacturer | NIVOK |
| Part Number | YYJW10271402 |
3. NIVOK
Traditional Double Wooden Door Panel Electric Dart Machine with LED Display, Professional Darts Competition Games, NIVOK Electronic Dart Board
NIVOK - After tens of thousands of dart throwing experiments, so that your dart can avoid trajectory deviation when flying, the angle of the dart is designed according to scientific data, and improve the accuracy of dart throwing. At the same time, kitchen, counter, living room, a very classic electronic dart game board, energy saving and environmental protection.
The dart feathers are scientifically designed. The operation buttons are easy to understand and have multiple game modes to make your indoor activities interesting.
Scoring is the enthusiasm for the game to continue. Scope of application, bar, birthday party, it is also a great gift for boys, etc. Humanized operation, the operation panel of the dart board is an LED display, and the digital music score is clear.
Let it enter the bedroom, girls and children. The dart head adopts a soft design, which can avoid accidental injury to children and avoid wall damage. The pinholes of the spider web are even and dense, making it easier for your darts to attach to the dart board. The electronic dart board is an automatic scoring dart, which uses a very sensitive electronic touch sensor to make the game more fair and accurate.
| Brand | NIVOK |
| Manufacturer | NIVOK |
| Part Number | YYJW10271398 |
4. LUCHUII
Training-Exercise PingPong Table Tennis Practice Robot Automatic Ball Machine for Science Experiments
LUCHUII - Different spinning gears can be used to create different spinning balls. It is a amazing and fantastic product at this price, it can be a great gift to your families or friends.
Swing frequency: 0-5 level swing speed adjust. Out-ball frequency:0-5 level can be adjusted. It also can be used for teaching purpose. Adjust the position of the machine according to your own preferences.
5. TAISK
TAISK Mechanical Stopwatch Used in Junior High School Physics Experiment Equipment
TAISK - Increments. Size: 50"68"16mm. Per turn, 1/10 sec. 15 minute shorthand; rugged steel case. Press the timer for the first time, then press to stop the timer and press again to reset to zero. Long hand 30 sec. Start/stop by crown; reset push button.
| Brand | TAISK |
| Manufacturer | TAISK |
| Part Number | YYJQC11161423 |
6. LYSGST
LYSGST Hydrogen Fuel Cell Demonstrator, Convert The Chemical Energy of Hydrogen and Oxygen into Electrical Energy, Experiment Equipment
LYSGST - After adding water, connect the hydrogen gas outlet on the water electrolyzer with the hydrogen gas inlet on the battery with a gas pipe. Hydrogen fuel cell. After 2-3 minutes, connect the electrical connection to the battery.
Electrical part: motor with fan, ammeter, voltmeter. The current and voltmeter display current, Voltage value. The amount of water should not be too much to prevent water from flowing into the battery.
Then connect the 6v-12v dc power supply to the positive and negative terminals of the water electrolyzer. Pem proton exchange membrane water Electrolyzer. The two proton exchange membrane electrodes in this set of demonstrators are both 35mm*35mm. Experimental procedure: add deionized water to the water level in the PEM water electrolyzer. The small motor starts to work.
7. LUCHUII
Adjustable Height Multi-Functional Pull-ups Station Fitness Slimming Equipment Indoor Horizontal Bar for Science Experiments Color : White
LUCHUII - Easy to use for multiple different workouts. Reinforced steel frame for holding your weight. It also can be used for teaching purpose. It is a amazing and fantastic product at this price, it can be a great gift to your families or friends.
Built-in push up bars to tone arms and chest. Develops muscle strength by lifting your own body weight; ideal for beginners or seasoned body-builders.
8. QHYTL
QHYTL Mechanical Stopwatch Used in Junior High School Physics Experiment Equipment
QHYTL - Start/stop by crown; reset push button. Per turn, 1/10 sec. Press the timer for the first time, then press to stop the timer and press again to reset to zero. Size: 50"68"16mm. 15 minute shorthand; rugged steel case. Long hand 30 sec. Increments.
9. QHYTL
QHYTL Mechanical Stopwatch Used in Junior High School Physics Experiment Equipment
QHYTL - Press the timer for the first time, then press to stop the timer and press again to reset to zero. 15 minute shorthand; rugged steel case. Start/stop by crown; reset push button. Long hand 30 sec. Size: 50"68"16mm. Increments. Per turn, 1/10 sec.
| Brand | QHYTL |
| Manufacturer | QHYTL |
| Part Number | YYJSY07071122 |
10. BJH
2.45M long measuring rod telescopic carbon fiber GPS rod 8.04 measuring rod receiver + 5/8" thread
BJH - For gps receivers with 5/8" threads. 2. 45m stretched to the maximum length of 2. 45m. Quantity: 1. 100% brand new and high quality. With 5/8" thread.
| Brand | BJH |
| Manufacturer | BJH |
| Part Number | YXWL19110943 |
ROSG - Please use only deionized water to ensure that the operation is under the correct instructions to avoid accidents. The hydrogen in the electrons flows from the anode to the cathode through an external circuit, the electrons, thereby generating current.
NIVOK - It is also an excellent gift for boys, bar, birthday party, living room, girls and children. Scope of application, kitchen, energy saving and environmental protection. The dart feathers are scientifically designed. Let it enter the bedroom, a very classic electronic dart game board, counter, etc.
NIVOK - After tens of thousands of dart throwing experiments, so that your dart can avoid trajectory deviation when flying, the angle of the dart is designed according to scientific data, and improve the accuracy of dart throwing. At the same time, kitchen, counter, living room, a very classic electronic dart game board, energy saving and environmental protection.
LUCHUII - Different spinning gears can be used to create different spinning balls. It is a amazing and fantastic product at this price, it can be a great gift to your families or friends. Swing frequency: 0-5 level swing speed adjust. Out-ball frequency:0-5 level can be adjusted. It also can be used for teaching purpose. Adjust the position of the machine according to your own preferences.
TAISK - Increments. Size: 50"68"16mm. Per turn, 1/10 sec. 15 minute shorthand; rugged steel case. Press the timer for the first time, then press to stop the timer and press again to reset to zero. Long hand 30 sec. Start/stop by crown; reset push button.
LYSGST - After adding water, connect the hydrogen gas outlet on the water electrolyzer with the hydrogen gas inlet on the battery with a gas pipe. Hydrogen fuel cell. After 2-3 minutes, connect the electrical connection to the battery.
BJH - For gps receivers with 5/8" threads. 2. 45m stretched to the maximum length of 2. 45m. Quantity: 1. 100% brand new and high quality. With 5/8" thread.
