Reference for Eruvin 82:13

למאי נפקא מינה למיבעי רחמי עלייהו

'MAY WE DISEMBARK? '<span class="x" onmousemove="('comment',' Lit., 'what (about) us to go down'. Having been carried during the Sabbath beyond their original Sabbath limit they were not sure whether they may or may not move beyond four cubits.');">²⁵</span> THEY ASKED R'GAMALIEL. YOU MAY', HE TOLD THEM, 'FOR I<span class="x" onmousemove="('comment',' By means of a certain instrument (v. Gemara infra) . (According to J. 'Er. IV, 2, he knew the heights of certain towers along the coast, and by directing his instrument to the tops of them he was able to calculate the distance) .');">²⁶</span>

Jastrow

Jastrow

Jastrow

Jastrow

Jastrow

Jastrow

Jastrow