Main Page | See live article | Alphabetical index A.I. Shlyakhter, Russian physicist. Noted that the existence of the "natural" nuclear reactor at Oklo in Gabon gave evidence that the physical fine-structure constant α has changed less than 10-17 per year over the last two billion years. This idea was picked up and improved upon by Freeman Dyson. For more information, see [http://alexonline.info] This article is from Wikipedia. All text is available under the terms of the GNU Free Documentation License.