A website with a database of information on a variety of units of measure. Look for new perspectives on the magnitude of any physical quantity. Contribute your own unique "Perspective Block." Or do it the easy way -- ask the Units Guy how big or small. Explore & learn!
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www.units-of-measure.com this month would like to recognize the the science curriculum of one extraordinary Middle School, Jr. High or High School:
W.H. Beasley Middle School
...where middle school science flourishes in Casper, Wyoming.
Please visit this months spot-light school's website and learn about how they achieve excellence in science education in their community.
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The read transition time for one user bit off of a ROM disk in the fastest DVD drives on the market today is about 8.33 nanoseconds or 120 megabits/second. Typically, you will see DVD speeds in groups of three numbers, for example: 2x1x8x. These speeds refer to the following functions of the DVD drive: Writing to 'R' media x Writing to 'RW' media x Reading 'ROM' media (R = Recordable, RW = ReWritable, and ROM = Read Only Memory.) 1X DVD transfer rate is defined as 1.25 megabytes/second (MB/s). Today’s peak performance DVD+R/RW drives are rated at 4x2.4x12x or 5 MB/s - 3 MB/s - 15 MB/s.
