SKU: 24810092363

Gravesande's Brass Ball and Ring Apparatus

Sale price$37.44 Regular price$41.60
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Ships within 48 hours · Estimated delivery Aug 15 - Aug 20

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Description

Gravesande's Brass Ball and Ring ApparatusGravesande's Brass Ball and Ring Apparatus serves as a practical tool for showcasing thermal expansion concepts and demonstrate the effects of heating a metal. Students can observe the effects of temperature changes on the expansion of a ring and its effect on the passage of a metal ball. The size of the brass ball is precisely matched to the brass ring, ensuring that even if the ball is significantly warmer or the ring is significantly cooler, the

Gravesande's Brass Ball and Ring Apparatus serves as a practical tool for showcasing thermal expansion concepts and demonstrate the effects of heating a metal. Students can observe the effects of temperature changes on the expansion of a ring and its effect on the passage of a metal ball. 

The size of the brass ball is precisely matched to the brass ring, ensuring that even if the ball is significantly warmer or the ring is significantly cooler, the ball will not be able to pass through the ring. However, when both are at the same temperature, the ball is able to pass through the ring.

If the ring is cooled in ice, the ball will be unable to pass through it. Alternatively, if the ball is heated, it will also be unable to pass through the ring. A chain connects the ball and ring, preventing them from becoming detached. 

Read Instruction Sheet

Product Code: SE.HL0200-001
Weight:  0.08 kg
Length: 220mm
Ball Diameter: 20mm


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SKU: 24810092363

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4.0 ★★★★★
Based on 25 reviews
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Verified Purchase
JMG
Pawtucket, US
★★★★★ 5
Great Bags!
Set name: 20 Combo
The bags are perfect for packing clothes for storage. I used them for my babies clothes and they fit great. I love the variety of sizes, and they are very easy to use. The zipper piece is a bit tricky to get on, but the zipper stays locked in place when closed.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 12, 2026
S
Verified Purchase
Shirley
Boise, US
★★★★★ 5
Saves space and keeps moisture and bugs out
Set name: 20 Combo
I have never bought these bags before. I went with good reviews. I used to pack my extra curtains in them. I definitely saved a lot of space. I tried using the hand pump, works fine just more effort and time on my part. The sweeper works fast and great. These are awesome bags. Ordered another box.
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Reviewed in the United States on May 21, 2026
S
Verified Purchase
sam carlmocco
Whiting, US
★★★★★ 3
Vacuum sealer bag with pump
Set name: 10 Jumbo
The storage bags are a nice size fit a lot of blankets and comforters with no problem and I have a lot of them. The problem I have is the pump they give you is ridiculous. Would take you forever to get all the air out. I use the vacuum hose and it’s still took some time but a lot easier than the pump they give you that’s why I gave a three stars instead of five.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 27, 2026
K
Verified Purchase
Kimberly Stacy
Phoenix, US
★★★★★ 5
Multiple size bags and easy to use.
Set name: 20 Combo
I was pleasantly surprised with how great these were. I chose these for the variety in bag size but I thought I would forever be using the hand pump. Very surprised it worked very quickly and the suction held. Would definitely recommend!
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Reviewed in the United States on May 26, 2026
C
Verified Purchase
cillbat
Battle Creek, US
★★★★★ 5
Just like the oem parts.
Like oem so all good.
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Reviewed in the United States on June 6, 2025

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