Description: Application: Sound propagation experiment The bell on the bell with a bell above the sound of the bell, bells can still hear a clear electric bell, and then extract the air bell, electric bells will gradually weaken until the sound can not hear, close the exhaust valve , So that Students observe, bell bell hammer is still kept ringing bell, but can not hear the sound. 2. Low-pressure boiling test. A cup of hot water has discharged boiling into the bell jar, and then pumping, you can see the cup of hot water and boiling up. In addition the instrument can also be used: vacuum fountain, evaporation icing, vacuum coating, atmospheric pressure and Other experiments. Specification: Max height: 28cm Max diameter: 18cm Main material: glass and plastics Weight:1.6kg Note: You need a vacuum pump to do the experiment.
Price: 56.52 USD
Location: China
End Time: 2025-01-18T07:23:22.000Z
Shipping Cost: 25.99 USD
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Item Specifics
Restocking Fee: No
Return shipping will be paid by: Seller
All returns accepted: Returns Accepted
Item must be returned within: 30 Days
Refund will be given as: Money back or replacement (buyer's choice)
