High Explosive Research
Catatan penjelas

↑  Kutipan asli: The meeting was about to decide against it on grounds of cost, when Bevin arrived late and said "We've got to have this thing. I don't mind it for myself, but I don't want any other Foreign Secretary of this country to be talked at or to by the Secretary of State of the United States as I have just been in my discussion with Mr Byrnes. We've got to have this thing over here, whatever it costs... We've got to have the bloody Union Jack flying on top of it."
↑  Kutipan asli: The British decision to make an atomic bomb had "emerged" from a body of general assumptions. It had not been a response to an immediate military threat but rather something fundamental and almost instinctive – a feeling that Britain must possess so climactic a weapon in order to deter an atomically armed enemy, a feeling that Britain as a great power must acquire all major new weapons, a feeling that atomic weapons were a manifestation of the scientific and technological superiority on which Britain's strength, so deficient if measured in sheer numbers of men, must depend.
↑  Kutipan asli: Her Majesty's Government does not accept the view ... that we have ceased to be a great power, or the contention that we have ceased to play that role. We regard ourselves as one of the powers most vital to the peace of the world, and we still have a historic part to play. The very fact we have fought so hard for liberty, and paid such a price, warrants our retaining that position; and indeed it places a duty upon us to continue to retain it. I am not aware of any suggestion, seriously advanced, that by a sudden stroke of fate, as it were, we have overnight ceased to be a great power.
↑  Kutipan asli: At that time we had to bear in mind that there was always the possibility of [the United States] withdrawing and becoming isolationist again. The manufacture of a British atom bomb was therefore at that stage essential to our defence. You must remember this was all prior to NATO. NATO has altered things. But at that time although we were doing our best to make the Americans understand the realities of the European situation—the world situation—we couldn't be sure we'd succeed. In the end we did. But we couldn't take risks with British security in the meantime.
Sir John Anderson, menteri yang bertanggung jawab atas proyek Tube Alloys
James Chadwick (kiri), pemimpin misi Britania untuk Proyek Manhattan, berbincang dengan Mayjen Leslie R. Groves, direktur proyek tersebut.
Charles Portal, Pengendali Produksi, Tenaga Atom
John Cockroft, kepala Atomic Energy Research Establishment
Perdana Menteri Clement Attlee dan Menteri Luar Negeri Ernest Bevin
William Penney, Inspektur Kepala Penelitian Persenjataan
Uranofan dalam spesimen malachite dari pertambangan Shinkolobwe.
Reaktor nuklir di Windscale
Rancangan bom atom jenis "implosi". Inisiator neutron (merah) berbahan polonium-berilium (merah) terletak di tengah. Pusat ini dikelilingi oleh plutonium berbentuk setengah bola. Lalu terdapat rongga udara (putih) dan pemantul neutron dari uranium. Di luarnya terdapat pendorong berbahan aluminium (ungu). Ini dibungkus oleh lensa ledak (kuning tua).
HMS Plym pada 1943
Pesawat Vickers Valiant dengan warna putih cerah anti radiasi.