simon43 Posted April 20, 2022 Share Posted April 20, 2022 (edited) Like this: I don't actually want to brew beer! It's for a bell jar/sound energy experiment for my students. You place an electric bell/buzzer inside the jar and then suck out the air with a small pump. The sound of the bell will get weaker, since sound energy needs 'matter' to travel through. I think the mouth of a jar like this will be enough for me to insert a small buzzer/battery ???? Edited April 20, 2022 by simon43 Link to comment Share on other sites More sharing options...
JoePai Posted April 20, 2022 Share Posted April 20, 2022 https://thaibrewshop.co/product/5-gallon-glass-carboy Smaller vols are cheaper Link to comment Share on other sites More sharing options...
Elkski Posted April 20, 2022 Share Posted April 20, 2022 Be careful of an implosion. Link to comment Share on other sites More sharing options...
simon43 Posted April 20, 2022 Author Share Posted April 20, 2022 2 minutes ago, Elkski said: Be careful of an implosion. I'm not intending to mimic a vacuum in outer space :). Just remove enough air to noticeably reduce the buzzer sound. I've done this experiment using these types of glass bottles many times in the UK. But your warning is noted! Link to comment Share on other sites More sharing options...
simon43 Posted April 28, 2022 Author Share Posted April 28, 2022 Absolutely zero response from the Thai Brew Shop........ Link to comment Share on other sites More sharing options...
bbko Posted May 3, 2022 Share Posted May 3, 2022 Thanks to @JoePai we now know the name of those glass jugs are carboys. A few larger ones available on Lazada; https://www.lazada.co.th/products/carboy-glass-jug-1-38-i2449429799-s8551361007.html?search=1&spm=a2o4m.searchlist.list.i40.84187d86vvpftF Link to comment Share on other sites More sharing options...
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