Home » Personal collection » Acorn ADFS disks » Electron » Pixel_map.ADF » EltronBKP/ElectronE
EltronBKP/ElectronE
This website contains an archive of files for the Acorn Electron, BBC Micro, Acorn Archimedes, Commodore 16 and Commodore 64 computers, which Dominic Ford has rescued from his private collection of floppy disks and cassettes.
Some of these files were originally commercial releases in the 1980s and 1990s, but they are now widely available online. I assume that copyright over them is no longer being asserted. If you own the copyright and would like files to be removed, please contact me.
| Tape/disk: | Home » Personal collection » Acorn ADFS disks » Electron » Pixel_map.ADF |
| Filename: | EltronBKP/ElectronE |
| Read OK: | ✔ |
| File size: | 0C4B bytes |
| Load address: | D6576 |
| Exec address: | 0000 |
File contents
�.........*.......*.......*.......*.......*.......*.......*.......*.......*.< He next turned his attention to how the positive and negative charges are distributed in an atom. He favoured the idea that the positive charge was uniformly distributed over the volume of the atom, with the negative corpuscles somehow embedded inside. This was his famous "plum pudding" model of the atom. It should be possible to calculate the stable positions of the corpuscles within such an atom by mathematical methods alone. However these calculations become extremely complex when there is more than one corpuscle present, and without the aid of modern computers Thomson had to resort to a two-dimensional mechanical model. As it happened, a suitable model had already been devised by Professor Mayer, though presumably for different purposes. The model consisted of a number of identical magnets attached to corks floating on a dish of water. A large electromagnet was held above the centre of the dish, so that the magnets would be attracted to the centre but repelled from each other just like the corpuscles in an atom. With one magnet in the dish, it would of course come to rest in the centre. With between two and five magnets, they would spread themselves into a circle around the electromagnet. However, with more than five magnets Mayer found that a single circle was not a stable arrangement. Instead the magnets would form into concentric rings. For example ten magnets would arrange themselves into an inner ring of three and an outer ring of seven. Thomson showed considerable insight in suggesting that the corpuscles inside an atom might follow a similar pattern. He correctly pointed out that each new ring in Mayer's sequence might represent a row in the Periodic Table. Then the number of corpuscles in the outer ring would determine the main chemical properties of the element, and which "group" or column of the Table it belonged to. This explanation of periodicity is not far removed from the that of the modern quantum mechanical atom. Ironically, Professor Mayer's model was closer to the true structure of the atom than Thomson's own idea. The positive charge represented by the electromagnet is all concentrated at the centre of Mayer's dish like the nucleus of an atom, while Thomson believed it should be distributed all over the atom. It is doubtful that this made the results any more realistic however, as the model was still only two-dimensional. Not everybody believed Thomson's revolutionary conclusions immediately. Indeed he says in his Recollections and Reflections that one distinguished physicist present at the Royal Institution thought Thomson had been "pulling their legs". Most German physicists continued to believe that cathode rays were waves, at least for a few months. Kaufmann for example said that the constant value of m/e supported the aether theory, for it showed that the rays were not part of the material in the tube. However it was still Thomson's work
00000000 81 2e 2e 2e 2e 2e 2e 2e 2e 2e 2a 2e 2e 2e 2e 2e |..........*.....| 00000010 2e 2e 2a 2e 2e 2e 2e 2e 2e 2e 2a 2e 2e 2e 2e 2e |..*.......*.....| * 00000040 2e 2e 2a 2e 2e 2e 2e 2e 2e 2e 2a 2e 3c 0d 09 48 |..*.......*.<..H| 00000050 65 20 6e 65 78 74 20 74 75 72 6e 65 64 20 68 69 |e next turned hi| 00000060 73 20 61 74 74 65 6e 74 69 6f 6e 1a 20 74 6f 1a |s attention. to.| 00000070 20 68 6f 77 1a 20 74 68 65 1a 20 70 6f 73 69 74 | how. the. posit| 00000080 69 76 65 1a 20 61 6e 64 1a 20 6e 65 67 61 74 69 |ive. and. negati| 00000090 76 65 0d 63 68 61 72 67 65 73 20 61 72 65 20 64 |ve.charges are d| 000000a0 69 73 74 72 69 62 75 74 65 64 20 69 6e 20 61 6e |istributed in an| 000000b0 20 61 74 6f 6d 2e 20 48 65 20 66 61 76 6f 75 72 | atom. He favour| 000000c0 65 64 20 74 68 65 20 69 64 65 61 20 74 68 61 74 |ed the idea that| 000000d0 20 74 68 65 20 70 6f 73 69 74 69 76 65 0d 63 68 | the positive.ch| 000000e0 61 72 67 65 1a 20 77 61 73 1a 20 75 6e 69 66 6f |arge. was. unifo| 000000f0 72 6d 6c 79 1a 20 64 69 73 74 72 69 62 75 74 65 |rmly. distribute| 00000100 64 1a 20 6f 76 65 72 20 74 68 65 20 76 6f 6c 75 |d. over the volu| 00000110 6d 65 20 6f 66 20 74 68 65 20 61 74 6f 6d 2c 20 |me of the atom, | 00000120 77 69 74 68 20 74 68 65 0d 6e 65 67 61 74 69 76 |with the.negativ| 00000130 65 20 63 6f 72 70 75 73 63 6c 65 73 20 73 6f 6d |e corpuscles som| 00000140 65 68 6f 77 20 65 6d 62 65 64 64 65 64 20 69 6e |ehow embedded in| 00000150 73 69 64 65 2e 1a 20 54 68 69 73 1a 20 77 61 73 |side.. This. was| 00000160 1a 20 68 69 73 1a 20 66 61 6d 6f 75 73 20 22 70 |. his. famous "p| 00000170 6c 75 6d 0d 70 75 64 64 69 6e 67 22 20 6d 6f 64 |lum.pudding" mod| 00000180 65 6c 20 6f 66 20 74 68 65 20 61 74 6f 6d 2e 20 |el of the atom. | 00000190 49 74 20 73 68 6f 75 6c 64 20 62 65 20 70 6f 73 |It should be pos| 000001a0 73 69 62 6c 65 1a 20 74 6f 20 63 61 6c 63 75 6c |sible. to calcul| 000001b0 61 74 65 20 74 68 65 20 73 74 61 62 6c 65 0d 70 |ate the stable.p| 000001c0 6f 73 69 74 69 6f 6e 73 1a 20 6f 66 1a 20 74 68 |ositions. of. th| 000001d0 65 1a 20 63 6f 72 70 75 73 63 6c 65 73 20 77 69 |e. corpuscles wi| 000001e0 74 68 69 6e 20 73 75 63 68 20 61 6e 20 61 74 6f |thin such an ato| 000001f0 6d 20 62 79 20 6d 61 74 68 65 6d 61 74 69 63 61 |m by mathematica| 00000200 6c 20 6d 65 74 68 6f 64 73 0d 61 6c 6f 6e 65 2e |l methods.alone.| 00000210 20 48 6f 77 65 76 65 72 20 74 68 65 73 65 20 63 | However these c| 00000220 61 6c 63 75 6c 61 74 69 6f 6e 73 1a 20 62 65 63 |alculations. bec| 00000230 6f 6d 65 1a 20 65 78 74 72 65 6d 65 6c 79 20 63 |ome. extremely c| 00000240 6f 6d 70 6c 65 78 20 77 68 65 6e 20 74 68 65 72 |omplex when ther| 00000250 65 20 69 73 0d 6d 6f 72 65 20 74 68 61 6e 20 6f |e is.more than o| 00000260 6e 65 20 63 6f 72 70 75 73 63 6c 65 20 70 72 65 |ne corpuscle pre| 00000270 73 65 6e 74 2c 20 61 6e 64 1a 20 77 69 74 68 6f |sent, and. witho| 00000280 75 74 1a 20 74 68 65 20 61 69 64 20 6f 66 20 6d |ut. the aid of m| 00000290 6f 64 65 72 6e 20 63 6f 6d 70 75 74 65 72 73 0d |odern computers.| 000002a0 54 68 6f 6d 73 6f 6e 20 68 61 64 20 74 6f 20 72 |Thomson had to r| 000002b0 65 73 6f 72 74 20 74 6f 20 61 20 74 77 6f 2d 64 |esort to a two-d| 000002c0 69 6d 65 6e 73 69 6f 6e 61 6c 20 6d 65 63 68 61 |imensional mecha| 000002d0 6e 69 63 61 6c 20 6d 6f 64 65 6c 2e 0d 09 41 73 |nical model...As| 000002e0 1a 20 69 74 20 68 61 70 70 65 6e 65 64 2c 20 61 |. it happened, a| 000002f0 20 73 75 69 74 61 62 6c 65 1a 20 6d 6f 64 65 6c | suitable. model| 00000300 1a 20 68 61 64 1a 20 61 6c 72 65 61 64 79 1a 20 |. had. already. | 00000310 62 65 65 6e 1a 20 64 65 76 69 73 65 64 1a 20 62 |been. devised. b| 00000320 79 0d 50 72 6f 66 65 73 73 6f 72 20 4d 61 79 65 |y.Professor Maye| 00000330 72 2c 1a 20 74 68 6f 75 67 68 1a 20 70 72 65 73 |r,. though. pres| 00000340 75 6d 61 62 6c 79 1a 20 66 6f 72 1a 20 64 69 66 |umably. for. dif| 00000350 66 65 72 65 6e 74 1a 20 70 75 72 70 6f 73 65 73 |ferent. purposes| 00000360 2e 1a 20 54 68 65 20 6d 6f 64 65 6c 0d 63 6f 6e |.. The model.con| 00000370 73 69 73 74 65 64 20 6f 66 20 61 20 6e 75 6d 62 |sisted of a numb| 00000380 65 72 20 6f 66 20 69 64 65 6e 74 69 63 61 6c 20 |er of identical | 00000390 6d 61 67 6e 65 74 73 20 61 74 74 61 63 68 65 64 |magnets attached| 000003a0 20 74 6f 20 63 6f 72 6b 73 20 66 6c 6f 61 74 69 | to corks floati| 000003b0 6e 67 20 6f 6e 20 61 0d 64 69 73 68 20 6f 66 20 |ng on a.dish of | 000003c0 77 61 74 65 72 2e 20 41 20 6c 61 72 67 65 20 65 |water. A large e| 000003d0 6c 65 63 74 72 6f 6d 61 67 6e 65 74 20 77 61 73 |lectromagnet was| 000003e0 20 68 65 6c 64 1a 20 61 62 6f 76 65 1a 20 74 68 | held. above. th| 000003f0 65 1a 20 63 65 6e 74 72 65 1a 20 6f 66 1a 20 74 |e. centre. of. t| 00000400 68 65 0d 64 69 73 68 2c 1a 20 73 6f 1a 20 74 68 |he.dish,. so. th| 00000410 61 74 1a 20 74 68 65 20 6d 61 67 6e 65 74 73 20 |at. the magnets | 00000420 77 6f 75 6c 64 20 62 65 20 61 74 74 72 61 63 74 |would be attract| 00000430 65 64 20 74 6f 20 74 68 65 20 63 65 6e 74 72 65 |ed to the centre| 00000440 20 62 75 74 20 72 65 70 65 6c 6c 65 64 0d 66 72 | but repelled.fr| 00000450 6f 6d 20 65 61 63 68 20 6f 74 68 65 72 20 6a 75 |om each other ju| 00000460 73 74 1a 20 6c 69 6b 65 1a 20 74 68 65 1a 20 63 |st. like. the. c| 00000470 6f 72 70 75 73 63 6c 65 73 20 69 6e 20 61 6e 20 |orpuscles in an | 00000480 61 74 6f 6d 2e 20 57 69 74 68 20 6f 6e 65 20 6d |atom. With one m| 00000490 61 67 6e 65 74 20 69 6e 0d 74 68 65 20 64 69 73 |agnet in.the dis| 000004a0 68 2c 20 69 74 20 77 6f 75 6c 64 20 6f 66 20 63 |h, it would of c| 000004b0 6f 75 72 73 65 20 63 6f 6d 65 1a 20 74 6f 20 72 |ourse come. to r| 000004c0 65 73 74 20 69 6e 20 74 68 65 20 63 65 6e 74 72 |est in the centr| 000004d0 65 2e 20 57 69 74 68 20 62 65 74 77 65 65 6e 20 |e. With between | 000004e0 74 77 6f 0d 61 6e 64 20 66 69 76 65 20 6d 61 67 |two.and five mag| 000004f0 6e 65 74 73 2c 20 74 68 65 79 20 77 6f 75 6c 64 |nets, they would| 00000500 20 73 70 72 65 61 64 20 74 68 65 6d 73 65 6c 76 | spread themselv| 00000510 65 73 20 69 6e 74 6f 1a 20 61 1a 20 63 69 72 63 |es into. a. circ| 00000520 6c 65 1a 20 61 72 6f 75 6e 64 20 74 68 65 0d 65 |le. around the.e| 00000530 6c 65 63 74 72 6f 6d 61 67 6e 65 74 2e 1a 20 48 |lectromagnet.. H| 00000540 6f 77 65 76 65 72 2c 1a 20 77 69 74 68 1a 20 6d |owever,. with. m| 00000550 6f 72 65 1a 20 74 68 61 6e 20 66 69 76 65 20 6d |ore. than five m| 00000560 61 67 6e 65 74 73 20 4d 61 79 65 72 20 66 6f 75 |agnets Mayer fou| 00000570 6e 64 20 74 68 61 74 20 61 0d 73 69 6e 67 6c 65 |nd that a.single| 00000580 20 63 69 72 63 6c 65 20 77 61 73 20 6e 6f 74 20 | circle was not | 00000590 61 20 73 74 61 62 6c 65 20 61 72 72 61 6e 67 65 |a stable arrange| 000005a0 6d 65 6e 74 2e 20 49 6e 73 74 65 61 64 20 74 68 |ment. Instead th| 000005b0 65 20 6d 61 67 6e 65 74 73 20 77 6f 75 6c 64 20 |e magnets would | 000005c0 66 6f 72 6d 0d 69 6e 74 6f 20 63 6f 6e 63 65 6e |form.into concen| 000005d0 74 72 69 63 20 72 69 6e 67 73 2e 20 46 6f 72 20 |tric rings. For | 000005e0 65 78 61 6d 70 6c 65 1a 20 74 65 6e 1a 20 6d 61 |example. ten. ma| 000005f0 67 6e 65 74 73 1a 20 77 6f 75 6c 64 20 61 72 72 |gnets. would arr| 00000600 61 6e 67 65 20 74 68 65 6d 73 65 6c 76 65 73 0d |ange themselves.| 00000610 69 6e 74 6f 20 61 6e 20 69 6e 6e 65 72 20 72 69 |into an inner ri| 00000620 6e 67 20 6f 66 20 74 68 72 65 65 20 61 6e 64 20 |ng of three and | 00000630 61 6e 1a 20 6f 75 74 65 72 1a 20 72 69 6e 67 1a |an. outer. ring.| 00000640 20 6f 66 1a 20 73 65 76 65 6e 2e 20 54 68 6f 6d | of. seven. Thom| 00000650 73 6f 6e 20 73 68 6f 77 65 64 0d 63 6f 6e 73 69 |son showed.consi| 00000660 64 65 72 61 62 6c 65 1a 20 69 6e 73 69 67 68 74 |derable. insight| 00000670 1a 20 69 6e 1a 20 73 75 67 67 65 73 74 69 6e 67 |. in. suggesting| 00000680 1a 20 74 68 61 74 1a 20 74 68 65 20 63 6f 72 70 |. that. the corp| 00000690 75 73 63 6c 65 73 20 69 6e 73 69 64 65 20 61 6e |uscles inside an| 000006a0 20 61 74 6f 6d 0d 6d 69 67 68 74 20 66 6f 6c 6c | atom.might foll| 000006b0 6f 77 20 61 20 73 69 6d 69 6c 61 72 20 70 61 74 |ow a similar pat| 000006c0 74 65 72 6e 2e 20 48 65 1a 20 63 6f 72 72 65 63 |tern. He. correc| 000006d0 74 6c 79 1a 20 70 6f 69 6e 74 65 64 1a 20 6f 75 |tly. pointed. ou| 000006e0 74 1a 20 74 68 61 74 20 65 61 63 68 20 6e 65 77 |t. that each new| 000006f0 0d 72 69 6e 67 20 69 6e 20 4d 61 79 65 72 27 73 |.ring in Mayer's| 00000700 20 73 65 71 75 65 6e 63 65 20 6d 69 67 68 74 20 | sequence might | 00000710 72 65 70 72 65 73 65 6e 74 20 61 20 72 6f 77 20 |represent a row | 00000720 69 6e 20 74 68 65 20 50 65 72 69 6f 64 69 63 20 |in the Periodic | 00000730 54 61 62 6c 65 2e 20 54 68 65 6e 0d 74 68 65 1a |Table. Then.the.| 00000740 20 6e 75 6d 62 65 72 1a 20 6f 66 1a 20 63 6f 72 | number. of. cor| 00000750 70 75 73 63 6c 65 73 1a 20 69 6e 1a 20 74 68 65 |puscles. in. the| 00000760 20 6f 75 74 65 72 20 72 69 6e 67 20 77 6f 75 6c | outer ring woul| 00000770 64 20 64 65 74 65 72 6d 69 6e 65 1a 20 74 68 65 |d determine. the| 00000780 1a 20 6d 61 69 6e 0d 63 68 65 6d 69 63 61 6c 20 |. main.chemical | 00000790 70 72 6f 70 65 72 74 69 65 73 20 6f 66 20 74 68 |properties of th| 000007a0 65 20 65 6c 65 6d 65 6e 74 2c 1a 20 61 6e 64 1a |e element,. and.| 000007b0 20 77 68 69 63 68 1a 20 22 67 72 6f 75 70 22 1a | which. "group".| 000007c0 20 6f 72 20 63 6f 6c 75 6d 6e 20 6f 66 20 74 68 | or column of th| 000007d0 65 0d 54 61 62 6c 65 20 69 74 20 62 65 6c 6f 6e |e.Table it belon| 000007e0 67 65 64 20 74 6f 2e 20 54 68 69 73 20 65 78 70 |ged to. This exp| 000007f0 6c 61 6e 61 74 69 6f 6e 20 6f 66 20 70 65 72 69 |lanation of peri| 00000800 6f 64 69 63 69 74 79 20 69 73 1a 20 6e 6f 74 1a |odicity is. not.| 00000810 20 66 61 72 20 72 65 6d 6f 76 65 64 0d 66 72 6f | far removed.fro| 00000820 6d 20 74 68 65 20 74 68 61 74 20 6f 66 20 74 68 |m the that of th| 00000830 65 20 6d 6f 64 65 72 6e 20 71 75 61 6e 74 75 6d |e modern quantum| 00000840 20 6d 65 63 68 61 6e 69 63 61 6c 20 61 74 6f 6d | mechanical atom| 00000850 2e 0d 09 49 72 6f 6e 69 63 61 6c 6c 79 2c 1a 20 |...Ironically,. | 00000860 50 72 6f 66 65 73 73 6f 72 1a 20 4d 61 79 65 72 |Professor. Mayer| 00000870 27 73 1a 20 6d 6f 64 65 6c 1a 20 77 61 73 1a 1a |'s. model. was..| 00000880 20 63 6c 6f 73 65 72 1a 20 74 6f 1a 20 74 68 65 | closer. to. the| 00000890 1a 20 74 72 75 65 0d 73 74 72 75 63 74 75 72 65 |. true.structure| 000008a0 1a 20 6f 66 1a 20 74 68 65 20 61 74 6f 6d 20 74 |. of. the atom t| 000008b0 68 61 6e 1a 20 54 68 6f 6d 73 6f 6e 27 73 1a 20 |han. Thomson's. | 000008c0 6f 77 6e 1a 20 69 64 65 61 2e 1a 20 54 68 65 1a |own. idea.. The.| 000008d0 20 70 6f 73 69 74 69 76 65 1a 20 63 68 61 72 67 | positive. charg| 000008e0 65 0d 72 65 70 72 65 73 65 6e 74 65 64 20 62 79 |e.represented by| 000008f0 20 74 68 65 1a 20 65 6c 65 63 74 72 6f 6d 61 67 | the. electromag| 00000900 6e 65 74 1a 20 69 73 1a 20 61 6c 6c 1a 20 63 6f |net. is. all. co| 00000910 6e 63 65 6e 74 72 61 74 65 64 1a 20 61 74 20 74 |ncentrated. at t| 00000920 68 65 20 63 65 6e 74 72 65 20 6f 66 0d 4d 61 79 |he centre of.May| 00000930 65 72 27 73 20 64 69 73 68 20 6c 69 6b 65 20 74 |er's dish like t| 00000940 68 65 20 6e 75 63 6c 65 75 73 20 6f 66 20 61 6e |he nucleus of an| 00000950 20 61 74 6f 6d 2c 20 77 68 69 6c 65 20 54 68 6f | atom, while Tho| 00000960 6d 73 6f 6e 20 62 65 6c 69 65 76 65 64 20 69 74 |mson believed it| 00000970 20 73 68 6f 75 6c 64 0d 62 65 1a 20 64 69 73 74 | should.be. dist| 00000980 72 69 62 75 74 65 64 1a 20 61 6c 6c 20 6f 76 65 |ributed. all ove| 00000990 72 20 74 68 65 20 61 74 6f 6d 2e 20 49 74 20 69 |r the atom. It i| 000009a0 73 1a 20 64 6f 75 62 74 66 75 6c 1a 20 74 68 61 |s. doubtful. tha| 000009b0 74 1a 20 74 68 69 73 1a 20 6d 61 64 65 1a 20 74 |t. this. made. t| 000009c0 68 65 0d 72 65 73 75 6c 74 73 1a 20 61 6e 79 1a |he.results. any.| 000009d0 20 6d 6f 72 65 1a 1a 20 72 65 61 6c 69 73 74 69 | more.. realisti| 000009e0 63 1a 20 68 6f 77 65 76 65 72 2c 1a 20 61 73 1a |c. however,. as.| 000009f0 20 74 68 65 1a 20 6d 6f 64 65 6c 1a 20 77 61 73 | the. model. was| 00000a00 1a 20 73 74 69 6c 6c 1a 20 6f 6e 6c 79 0d 74 77 |. still. only.tw| 00000a10 6f 2d 64 69 6d 65 6e 73 69 6f 6e 61 6c 2e 0d 09 |o-dimensional...| 00000a20 4e 6f 74 1a 1a 20 65 76 65 72 79 62 6f 64 79 1a |Not.. everybody.| 00000a30 1a 20 62 65 6c 69 65 76 65 64 1a 1a 20 54 68 6f |. believed.. Tho| 00000a40 6d 73 6f 6e 27 73 1a 1a 20 72 65 76 6f 6c 75 74 |mson's.. revolut| 00000a50 69 6f 6e 61 72 79 1a 20 63 6f 6e 63 6c 75 73 69 |ionary. conclusi| 00000a60 6f 6e 73 0d 69 6d 6d 65 64 69 61 74 65 6c 79 2e |ons.immediately.| 00000a70 1a 20 49 6e 64 65 65 64 20 68 65 20 73 61 79 73 |. Indeed he says| 00000a80 20 69 6e 20 68 69 73 20 52 65 63 6f 6c 6c 65 63 | in his Recollec| 00000a90 74 69 6f 6e 73 20 61 6e 64 20 52 65 66 6c 65 63 |tions and Reflec| 00000aa0 74 69 6f 6e 73 20 74 68 61 74 20 6f 6e 65 0d 64 |tions that one.d| 00000ab0 69 73 74 69 6e 67 75 69 73 68 65 64 20 70 68 79 |istinguished phy| 00000ac0 73 69 63 69 73 74 1a 20 70 72 65 73 65 6e 74 1a |sicist. present.| 00000ad0 20 61 74 20 74 68 65 20 52 6f 79 61 6c 20 49 6e | at the Royal In| 00000ae0 73 74 69 74 75 74 69 6f 6e 20 74 68 6f 75 67 68 |stitution though| 00000af0 74 20 54 68 6f 6d 73 6f 6e 0d 68 61 64 20 62 65 |t Thomson.had be| 00000b00 65 6e 20 22 70 75 6c 6c 69 6e 67 20 74 68 65 69 |en "pulling thei| 00000b10 72 20 6c 65 67 73 22 2e 20 4d 6f 73 74 20 47 65 |r legs". Most Ge| 00000b20 72 6d 61 6e 20 70 68 79 73 69 63 69 73 74 73 20 |rman physicists | 00000b30 63 6f 6e 74 69 6e 75 65 64 20 74 6f 20 62 65 6c |continued to bel| 00000b40 69 65 76 65 0d 74 68 61 74 20 63 61 74 68 6f 64 |ieve.that cathod| 00000b50 65 20 72 61 79 73 20 77 65 72 65 1a 20 77 61 76 |e rays were. wav| 00000b60 65 73 2c 1a 20 61 74 1a 20 6c 65 61 73 74 1a 20 |es,. at. least. | 00000b70 66 6f 72 1a 20 61 20 66 65 77 20 6d 6f 6e 74 68 |for. a few month| 00000b80 73 2e 20 4b 61 75 66 6d 61 6e 6e 20 66 6f 72 0d |s. Kaufmann for.| 00000b90 65 78 61 6d 70 6c 65 20 73 61 69 64 20 74 68 61 |example said tha| 00000ba0 74 20 74 68 65 20 63 6f 6e 73 74 61 6e 74 20 76 |t the constant v| 00000bb0 61 6c 75 65 20 6f 66 20 6d 2f 65 20 73 75 70 70 |alue of m/e supp| 00000bc0 6f 72 74 65 64 1a 20 74 68 65 1a 20 61 65 74 68 |orted. the. aeth| 00000bd0 65 72 20 74 68 65 6f 72 79 2c 0d 66 6f 72 20 69 |er theory,.for i| 00000be0 74 20 73 68 6f 77 65 64 20 74 68 61 74 20 74 68 |t showed that th| 00000bf0 65 20 72 61 79 73 20 77 65 72 65 20 6e 6f 74 20 |e rays were not | 00000c00 70 61 72 74 20 6f 66 20 74 68 65 1a 20 6d 61 74 |part of the. mat| 00000c10 65 72 69 61 6c 1a 20 69 6e 1a 20 74 68 65 1a 20 |erial. in. the. | 00000c20 74 75 62 65 2e 0d 48 6f 77 65 76 65 72 20 69 74 |tube..However it| 00000c30 20 77 61 73 20 73 74 69 6c 6c 20 54 68 6f 6d 73 | was still Thoms| 00000c40 6f 6e 27 73 20 77 6f 72 6b 20 0d |on's work .| 00000c4b
EltronBKP/ElectronE.m0
EltronBKP/ElectronE.m1
EltronBKP/ElectronE.m2
EltronBKP/ElectronE.m4
EltronBKP/ElectronE.m5
.