This episode discusses the solidity of atoms and electron orbits mentioned in the Quran. It notes that very strong structures exist even in nuclear weapons and nuclear fission/fusion processes. It suggests that the Quranic verse refers to the strength of atoms that cannot be broken, as well as the cloud-like motion of electrons orbiting the atomic nucleus, similar to how clouds move.
1 Henrik Stapelfeldt, "Electrons Frozen in Motion", Nature, 16 December 2004, Vol. 432, pp. 809-810; Adrian Cho, "Whispering Atoms", New Scientist, 16 September 2000, Vol. 2256, p. 15; Albert Stolow, David M. Jonas, "Multidimensional Snapshots of Chemical Dynamics", Science, 10 September 2004, Vol 305, no. 5690, pp. 1575-1577.