Bell in Vacuum Demonstration Set
- Regular price
- $220.00
- Sale price
- $220.00
- Regular price
-
RRP $275.00
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Late fees, eligibility criteria and T&Cs apply. Australian credit licence 527911.
SKU: EVSER1052591
MPN: SER1052591
You need a vacuum pump, and we do not sell one
Read this first: this is the bell jar, plate and electric bell. The vacuum pump is a separate item, it is not included, and we do not currently stock it. Without a pump this apparatus does nothing.
The supplier specifies vacuum pump SER1014149. That is not on our site. If you already have a working laboratory vacuum pump this set will work with it; if you do not, buy the pump first or ask us to quote one before you order this.
What the demonstration shows. A ringing bell sits sealed inside the jar. As air is pumped out, the sound fades and eventually disappears while the striker is plainly still moving. Sound needs a medium; light does not. It is one of the few physics demonstrations where students watch a thing happen and cannot argue with it.
One thing the supplier is unclear about. The product name says "with Plate & Bell - Electric", but their own description talks about a ringing alarm clock under the jar. We do not know whether the sound source shipped is an electric bell, a clock, or both, so we are not going to describe it as either. Ask us and we will confirm exactly what is in the box before you order.
$200.00. Made for demonstration rather than class sets - one per science department.
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Shipping
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Delivery Times
Melbourne, Sydney, Brisbane, Adelaide — 1 to 3 business days
Perth — 1 to 5 business days
Regional & Outer Areas — 3 to 7 business days
Returns
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Specifications
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FAQs
Shipping & Delivery
Delivery time depends on your location, the size of your order, and the shipping option selected at checkout. For in-stock items, standard metro delivery in QLD, NSW and VIC is usually 1 to 7 business days. South Australia, Tasmania, Western Australia and the Northern Territory are generally 3 to 12 business days. Express delivery for eligible parcels under 3kg is usually 1 to 4 business days in QLD, NSW, ACT and VIC. Delivery estimates apply to in-stock items only and may vary due to carrier conditions or delays.
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Mega Office Supplies ships orders Australia wide and occasionally internationally. The best avenue would be to contact us so we can customise a specific quote for you. Please note that associated international duties, taxes and levies will be the responsibility of the customer.
Returns, Refunds & Replacements
Mega Office Supplies accepts change-of-mind returns for unopened and unused products within 14 days from the invoice date, provided the item is returned in its original packaging and in resalable condition. Original shipping costs are not refundable, return shipping is the customer’s responsibility, and a restocking fee may apply depending on the product type and supplier. Some items, including electronics, assembled or installed furniture, food, beverages, medicines, custom-made products, and certain bulk or special-order items, are not eligible for return unless required under Australian Consumer Law.
If your order arrives faulty, damaged, or incorrect, please contact Mega Office Supplies as soon as possible. Where required under Australian Consumer Law, a repair, replacement, or refund will be offered. In these cases, Mega Office Supplies will cover reasonable return shipping costs, and photographic evidence may be requested to help process the claim. Items should be reported within a reasonable timeframe after delivery.
