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    EDISON ON RADIUM EMANATIONS
    August 3, 1903 - New York, USA

    Thomas Edison's opinion of radium was quoted within an article in the New York World newspaper. “I have had several pieces of it from Mme. Curie in Paris, and I have experimented with it. I do not see its commercial utility, but it opens up a great field of thought and scientific research. It overturns all the old theories of force and energy... I have a peculiar theory about radium, and I believe it is the correct one. I believe that there is some mysterious ray pervading the universe that is fluorescing to it. In other words, that all its energy is not self-constructed but that there is a mysterious something in the atmosphere that scientists have not found that is drawing out those infinitesimal atoms and distributing them forcefully and indestructibly.

    EDISON ON X-RAYS
    August 3, 1903 - New York City USA

    Thomas Edison's concern about X-Ray injury was front page news in the New York World newspaper. Under the headline Edison Fears Hidden Perils of the X-rays the history of injuries of his laboratory employee were described. Clarence Dally had an arm and hand amputated because of cancer caused by exposure to X-rays. Edison's own experience was that viewing with his own X-ray fluoroscope harmed his own eyesight two years earlier. The focus of his left eye was disturbed by his experiments causing him to abandon research on X-rays. Edison, the Wizard of Menlo Park, was also quoted saying, I am afraid of radium and polonium too, and I don't want to monkey with them.

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ARTICLE INFORMATION :

Reflections on a data recovery makes it as a rule, whenever the data on the disk can not be accessed, and there is no current backup.

ARTICLE CONTENT :

Reflections on a data recovery makes it as a rule, whenever the data on the disk can not be accessed, and there is no current backup. The causes for a hard disk failure and the consequent threat of data loss can be very diverse. Some disorders that can lead to failure of a disk, you will find listed here.

Hard Drive Data Recovery - Logical error:
This includes one can summarize the mistakes that have an impact on the file structure, with the disk in such a case is technically intact. For example, the MBR (master boot record is damaged) or FAT (File Allocation Table =) file system is damaged or deleted. Viruses may have mixed up the file system or deleted. In most cases, the hard disk recovery is possible. It is also called a logical data recovery. Were not the relevant sectors of the disk overwritten with new information, is a data recovery lab can, and often can be a few errors with so-called repair tools for data recovery. Here, however, caution - if you're not knowledgeable, then one has also quickly increases the damage or even makes a subsequent professional data recovery impossible.

Another cause of data loss is the demagnetization of the magnetic disks of the disk. This can be done by disturbing magnetic fields or by sabotage. A data recovery is no longer possible.

Hard Drive Recovery - Mechanical defects:
For the purely mechanical defects of hard drives, can not save the disks, but the data on disk can be restored by a professional data recovery. In cases where for example of a hard disk drive is beyond repair, will be installed by specialists in the clean room laboratory, the entire stack of magnetic disks to another hard drive and then backed up all data onto another disk. By dubbing this disk to a new hard drive, all data are immediately available again.

Hard Disk Data Recovery - Physical Defects:
Physical disk defects are already severe.
For example, when a head crash can be a few sectors of the disk entirely lost forever, although even here the Data Recovery Services specialist tools are available, which also seeks out defective sectors on a reading of each byte.

A resulting from external mechanical or thermal exposure to hard drive failure is the most difficult variant. Depending on the type, intensity and duration of exposure to such Fire or water may be irretrievably lost a lot of data. If for example exceeds a fire acting a certain temperature, which is indispensable to save the data to be repealed magnetizing the disk and the data are not beyond saving.

I am writing on data recovery process which are followed by most of the Server Recovery companies and it is difficult to get data from a formatted disk with out the help of data recovery company or software.

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  • November 29, 2014Date Added :
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