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2. List of Indian inventions and discoveries - Wikipedia

   en.wikipedia.org/wiki/List_of_Indian_inventions...

   The usage of the zero in the Bakhshali manuscript was dated from between 3rd and 4th centuries, making it the earliest known usage of a written zero, in a decimal place value system. [167] Hindu number system – With decimal place-value and a symbol for zero, this system was the ancestor of the widely used Arabic numeral system. It was ...

3. Octal - Wikipedia

   en.wikipedia.org/wiki/Octal

   To convert integer decimals to octal, divide the original number by the largest possible power of 8 and divide the remainders by successively smaller powers of 8 until the power is 1. The octal representation is formed by the quotients, written in the order generated by the algorithm. For example, to convert 125 10 to octal: 125 = 8 2 × 1 + 61

4. List of common misconceptions - Wikipedia

   en.wikipedia.org/wiki/List_of_common_misconceptions

   All microwave radiation dissipates as heat. Long-term rodent studies to assess cancer risk have so far failed to identify any carcinogenicity from 2.45 GHz microwave radiation even with chronic exposure levels (i.e. large fraction of life span) far larger than humans are likely to encounter from any leaking ovens. The risk of injury from direct ...

5. Aspect ratio (image) - Wikipedia

   en.wikipedia.org/wiki/Aspect_ratio_(image)

   In contrast, digital projection technology typically supports vertically oriented images only at a fraction of the resolution of landscape-oriented images. For example, projecting a digital still image having a 3:2 aspect ratio on a 16:9 projector employs 84.3% of available resolution in horizontal orientation, but only 37.5% in vertical ...

6. Eastern Caribbean dollar - Wikipedia

   en.wikipedia.org/wiki/Eastern_Caribbean_dollar

   In 1949, the British government formalized the dollar system of accounts in British Guiana and the Eastern Caribbean territories by introducing the British West Indies dollar (BWI$) at the already existing conversion rate of $4.80 per pound sterling (or $1 = 4 shillings 2 pence). It was one of the many experimental political and economic ...