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  2. Toll-free telephone numbers in the North American Numbering ...

    en.wikipedia.org/wiki/Toll-free_telephone...

    Toll-free telephone numbers in the North American Numbering Plan have the area code prefix 800, 833, 844, 855, 866, 877, and 888. Additionally, area codes 822, 880 through 887, and 889 are reserved for toll-free use in the future. 811 is excluded because it is a special dialing code in the group NXX for various other purposes.

  3. List of tallest buildings and structures - Wikipedia

    en.wikipedia.org/wiki/List_of_tallest_buildings...

    The second-tallest structure in the world is the 679-metre-tall (2,227 ft) Merdeka 118 in Kuala Lumpur, Malaysia, while the third-tallest self-supporting structure and the tallest tower in the world is the Tokyo Skytree (634 m or 2,080 ft). The tallest guyed structure is the KRDK-TV mast in North Dakota, U.S. at 630 metres (2,060 ft).

  4. 800 MHz frequency band - Wikipedia

    en.wikipedia.org/wiki/800_MHz_frequency_band

    The 800 MHz frequency band is a portion of the electromagnetic spectrum, or frequency band, that encompasses 790–862 MHz. Being a part of the spectrum known as "UHF Bands IV and V" (i.e. 470 MHz to 862 MHz) it was allocated by the ITU to Broadcasting as the primary user in Region 1 and was used for analogue television broadcasting before ...

  5. Toll-free telephone number - Wikipedia

    en.wikipedia.org/wiki/Toll-free_telephone_number

    Calling an 800-number is free of charge. Calling a 400-number incurs a local access charge. 800-numbers are accessible only to land-line subscribers, while 400-numbers are accessible to all land-line and mobile users. 800-toll-free numbers. 800 toll-free numbers are commonly called "800 免费电话".

  6. List of common display resolutions - Wikipedia

    en.wikipedia.org/wiki/List_of_common_display...

    800: ×: 480 5∶3: 5∶3: 1∶1: 384,000: W-PAL Wide PAL: 848: ×: 480 53∶30 : 16∶9: 1.006 407,040: FWVGA: List of mobile phones with FWVGA display: 854: ×: 480 427∶240 : 16∶9: 0.999 409,920: SVGA: Super VGA Nintendo Wii, Nintendo 64 HiRes, GameCube HiRes 800: ×: 600 4∶3: 4∶3: 1∶1: 480,000: qHD: Quarter FHD: AACS ICT, HRHD ...

  7. List of European countries by average wage - Wikipedia

    en.wikipedia.org/wiki/List_of_European_countries...

    800: 845: 961: 1,035 Iceland-----3,358: 2,461: 2,662: 2,850: 3,036: 3,239: 3,636: 4,183: 4,963: 5,865: 5,645 Ireland-----3,682: 3,698: 3,697: 3,669: 3,708: 3,726: 3,736: 3,755: 3,803: 3,867: 3,966 Kazakhstan-91: 107: 131: 140: 137: 168: 206: 258: 313: 343: 327: 397: 441: 528: 540: 508: 513: 377: 409: 400 Kosovo-----431: 444: 482: 510: 519: 528 ...

  8. Comparison of ARM processors - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_ARM_processors

    All chips of this type have a floating-point unit (FPU) that is better than the one in older ARMv7-A and NEON ( SIMD) chips. Some of these chips have coprocessors also include cores from the older 32-bit architecture (ARMv7). Some of the chips are SoCs and can combine both ARM Cortex-A53 and ARM Cortex-A57, such as the Samsung Exynos 7 Octa.

  9. Names of large numbers - Wikipedia

    en.wikipedia.org/wiki/Names_of_large_numbers

    This section illustrates several systems for naming large numbers, and shows how they can be extended past vigintillion . Traditional British usage assigned new names for each power of one million (the long scale ): 1,000,000 = 1 million; 1,000,0002 = 1 billion; 1,000,0003 = 1 trillion; and so on. It was adapted from French usage, and is ...

  10. Hardness comparison - Wikipedia

    en.wikipedia.org/wiki/Hardness_comparison

    Hardness comparison table. Brinell HB. (10 mm Ball, 3000 kg load) Vickers HV. (5 kg) Rockwell C HRC. (120 degree cone 150 kg) Rockwell B HRB. (1/16" ball 100 kg)

  11. British Rail Class 800 - Wikipedia

    en.wikipedia.org/wiki/British_Rail_Class_800

    The British Rail Class 800, branded as the Intercity Express Train ( IET) by Great Western Railway (GWR) and Azuma by London North Eastern Railway (LNER) is a type of bi-mode multiple unit train built by Hitachi Rail for GWR and LNER. The type uses electric motors powered from overhead electric wires for traction, but also has diesel generators ...