[Avodah] The size of a kazayit and of an amma

[Zev Sero]

On 26/03/18 07:04, Arie Folger via Avodah wrote:

> IIUC, a reviit of 75cc corresponds to an amma of roughly 43.5-45cm.

1 revi'it = 10.8 cubic etzba'ot.  Therefore a 75 ml revi'it means a 45.8 
cm amma.

 > An amma of 43.5-45cm would make many eiruvin passul.

How so?  4.6 m gaps treated as less than 10 amot?  23 cm gaps treated as 
lavud?


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Zev Sero            A prosperous and healthy 2018 to all
zev at sero.name       Seek Jerusalem's peace; may all who love you prosper