Did You Know...
...that the x-ray was discovered purely by accident? When German physicist Wilhelm Konrad von Roentgen was experimenting with cathode rays in 1895, he put an activated Crookes tube in a book and went out to lunch. When he returned, he discovered that a key that had also been placed in the book showed up as an image on the developed film!
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| Number | Title | Issue Date |
| 8094793 | Billing cycle division system, method, and computer program product A system, method and computer program product are provided for distributed billing. In use, service usage information associated with a plurality of customers is distributed to a plurality of billing processor platforms in substantially a billing cycle-independent m... | 01/10/2012 |
| 7917951 | Detecting malware carried by an e-mail message An anti-virus system provider distributes an e-mail identifying content filtering rule seeking to identify e-mail messages suspected of containing an item of malware from a central source (20) to users (2). This distribution may be by an e-mail message... | 03/29/2011 |
| 7124771 | Spill containment system and method A spill containment system and method that contain leaks and spills from devices including but not limited to batteries. The system neutralizes and absorbs leaks and spills to prevent the leaks and spills from spreading. The system not only detects leaks, but also i... | 10/24/2006 |
| 6871279 | Method and apparatus for securely and dynamically managing user roles in a distributed system One embodiment of the present invention provides a system for managing user attributes that determines access rights in a distributed computing system. The system modifies an attribute database, wherein the attribute database includes a plurality of possible user at... | 03/22/2005 |
