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846 degrees Fahrenheit = 452.2 degrees Celsius.

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Convert 846 meters to kilometers?

1 mile = 1.609344 kilometers846 kilometers x 1 mile/1.609344 kilometers= 525.68 milesyou may try using the online converter linked below


What is the earliest form of measurement?

The Treaty of the Meter was an agreement signed by 20 countries in 1875 that established the International Bureau of weight and Measures in France to provide standards of measurement for use throughout the world. The idea of defining a unit of length in terms of the wavelength of light had been floated early in the 19th century (J. Babinet, 1827), before there was any way of realizing the idea in practice. By the end of the century this was no longer so. "White" light is a mixture of light with different wavelengths. To define a unit of length in terms of wavelength, one needs light that is all of the same wavelength. Light consisting of only one wavelength-any wavelength, provided it is visible-appears to a human to be colored, and is called monochromatic. Fortunately it doesn't seem hard to produce monochromatic light: sprinkle some salt on the gas flames of a kitchen range. When the sodium atoms in the salt get excited, they give off a yellow light which is pretty much all the same wavelength. It is the same yellow as the light from sodium vapor street lamps. The wavelength is characteristic of the sodium atom. In 1892-3 A. A. Michelson and J. R. Benoit succeeded in measuring the meter in terms of the wavelength of red light given off by excited cadmium atoms. Benoit and others refined the measurement in 1905-7, and in 1907 the International Solar Union (which is now the IAU) defined the international angstrom, a unit of distance to be used in measuring wavelengths, by making 6438.4696 international angstroms equal to the wavelength of the red line of cadmium. This value was taken from Benoit's experiments, and was chosen so that one angstrom was approximately 10-10 meter. (In 1927, the 7th CGPM provisionally sanctioned measuring distances in terms of the red line of cadmium, taking its wavelength to be 0.643 846 96 micrometers.) Meanwhile, much had been learned since 1892. Even in the best of spectroscopes, the red line of cadmium was somewhat fuzzy. In fact, it turned out to be composed of many lines (physicists refer to its "hyperfine structure"), which affected how precisely the light's wavelength could be determined. When the existence of isotopes was discovered, it became clear that part of the reason for the fuzziness was that the light was not coming from a single kind of atom, but from a mixture of isotopes: cadmium atoms with the same number of protons, but different numbers of neutrons. Investigating light from pure isotopes, it was found that if an atom had an even number of protons, and the sum of the numbers of protons and neutrons it contained was also even, the light from it had no hyperfine structure. (Such atoms have no nuclear spin, hence no coupling of nuclear spin to electron spins-and the light comes from the electrons.) The 9th CGPM (1948) allowed as how the meter might eventually be defined in terms of light from such an isotope. Three isotopes were intensively investigated to see which would be most suitable as the basis for a standard of length: krypton-86 (36 protons), mercury-198 (80 protons), and cadmium-114 (48 protons). The committee in charge of following these developments recommended that any new definition be stated in terms of the wavelength in a vacuum instead of in air, and that the length of the wavelength should be specified by comparing it with the already determined wavelength of the red line of cadmium, not with the International Prototype of the Meter. The 10th CGPM (1954) accepted these recommendations, in effect making the angstrom exactly equal to 10-10 meter and defining the meter in terms of light, although this was not formally acknowledged until 1960. The advisory committee declared krypton-86 the winner in 1957, and in 1960, the 11th CGPM (Resolution 6), noting that "the International Prototype does not define the meter with an accuracy adequate for the present needs of metrology," redefined the meter as "the length equal to 1 650 763.73 wavelengths in vacuum of the radiation corresponding to the transition between the levels 2p10 and 5d5 of the krypton 86 atom." Defined this way, it proved impossible to realize the meter with an accuracy better than 4 parts in 109, and eventually that was not accurate enough. In the meantime, however, the laser had been invented, and the light it produced-not only all one wavelength, but all in phase-opened up new possibilities for metrology. In 1983 the 17th CGPM (Resolution 1) redefined the meter in terms of the speed of light in a vacuum. The value for the speed of light, 299,792,458 meters per second, had already been recommended in 1975 by the 15th CGPM, (Resolution 2). Its use in the meter's definition made the speed of light fall within the limits of uncertainty of the best existing measurements. Thus the second, rejected as too arbitrary in 1791, has become the basis of the meter. We have probably not seen the last redefinition of the meter; the current definition may need tuning if even more accuracy becomes necessary. For example, the speed of light is affected by the strength of the gravitational field, and the 1983 definition does not take such factors into account. The Metric Act in 1866 was significant because recognized the metric system as a legal system of measurement in the United States. Basically, it was significant because it said that the United States said the metric system was reliable enough to be used in the U.S. A little extra information-It is sometimes referred to as the Kasson Act, after Congressman John A. Kasson of Iowa, who chaired the House Committee on Coinage, Weights, and Measures.


What is land use pattern in Himalayan region?

The land use pattern in the Himalayan region consists of a mix of agricultural activities such as terraced farming for crops like rice and wheat, pastoralism for livestock grazing, forestry for timber and non-timber forest products, and tourism. The rugged terrain and varying altitude of the Himalayas influence the type of land use observed in different parts of the region.


Where are craftsman and troy built snow blowers made What state or country?

Troy-Bilt products are now owned by Modern Tool and Die of Cleveland Ohio. They were purchased by MTD around 1987. Though they still use the old assembly line for the tillers, Snow Blower and yard tractors are are an MTD design and built in MTD's manufacturing plant in Cleveland. The majority of Craftsman branded snow blowers are also manufactured by Modern Tool and Die, or MTD for short, located in Valley City Ohio, usually labeled Cleveland Ohio. Some models are made by other American manufacturers such as Murray, Toro, Husqvarna and Roper. Sear also sells equipment made and branded by their respective manufacturer. If you wish to know the manufacturer of a Sears product, it is designated by the first three digits of the model number; Prefix Manufacturer 001 Stevens 002 Lemont Industries 071 Agri-Fab Corp 093 Ametek 101 Atlas Press (now Clausing Industrial) 102 Walker Turner 102 Robert Shaw 103 King Seeley 103 Roper 103 Sarlo Power Mower Inc 106 Campbell Hausfeld 106 Tate Mfg Co 106 WHIRLPOOL 107 Millers Falls (Dunlap electric drills 25830 & 1345, drill stand 25630, and hand planes) 108 Covel Mfg Co (now Clausing Industrial) 109 AA Engineering / Double A Products 110 Charglow 110 KITCHENAID 110 Syncro Devices / Syncro Corp 110 WHIRLPOOL 111 Watson Mfg Co (4 jaw lathe chuck) 112 Parks Tool Co 113 EMERSON ELECTRIC 114 Pioneer Gen-E-Motor 114 ROYAL 115 Rixon 116 MATSUSHITA 117 Excel Auto Radiator Co (Crafty rotary tool made by Handee) 117 White 119 FRIGIDAIRE 119 (2302 1940s worm drive circular saw) possibly Wappat or Wodack Elect Tool 121 Dille & McGuire 122 Blair Mfg 123 Yardman 128 E.T (J?). Rugg 129 Mono Mfg 130 Bosch 131 American Yard Products (now Husqvarna) 131 Rally/Roper Lawn 133 American Yard Products (now Husqvarna) 135 Skil or SB (Skil/Bosch) 136 Toro Manufacturing Corp. 137 Rexon 139 Chamberlain (garage goor openers) 139 Chamberlain/Duchoissois 143 FISHER 143 SFS CORP (Sanyo/FISHER) 143 Tecumseh (Lauson Power Products) 143 Tecumseh Engine & Gear 144 TRANE 145 Country Mfg 145 Evans Rule 146 Wen 147 Village Blacksmith (McGraw Edison) 149 AMT (American Machine and Tool) 150 Cal Pump 150 White Consolidated 152 Orion International 153 STATE INDUSTRIES 155 Preway 160 Wisconsin Magneto 161 Actron Industries 161 NAKAJIMA 165 Wagner (painting products) 171 Vermont American 171 Larson Mfg 172 Positec Power Tools (Suzhou) Co. Ltd.-Charlotte NC (importer) 174 Caloric 174 SOUNDESIGN 175 Bissell 175 RYOBI 175 In-Sink-Erator 176 MURATA 177 ___?___ (model 24480 motor on 112.23160 radial arm saw) 179 Deuer Mfg 180 Lambert Corp 187 Stanley / Stanley Tools 187 White Consolidated 190 PIONEER 193 Parker Mfg 198 Whirlpool (freezer) 200 Schumaker Electric (battery chargers) 201 Furnas Electric (reversing switches) (code 2018?) 202 Gannon Mfg 204 IONA 207 ___?___ (circular saws & 3-drum belt sander portable power tools) 213 Lewisan Products 214 BISSELL 214 Shinn Fu/MVP 214 Shinn Fu of America 216 PHONEMATE 217 Eska Outboards 219 MTD 222 PANASONIC VIDEO/AUDIO 225 Force Outboards/Brunswick Corp (source=Sears employee) 233 BROAN 234 Beard-Poulan & Lazy Boy 234 Poulan 235 INGERSOLL RAND 239 __?__ (flex-shafts for electric motors) 240 Disston Inc 241 Fimco 244 Kal Equipment/Peerless Instruments 246 BRK Electronic 247 MTD (Modern Tool and Die) 250 J.I. Case 250 Turner Industries 251 Century Electric Div of Magnetech 253 FRIGIDAIRE 253 Gibson (now Frigidare) 253 WHITE CONSOLIDATED 253 WHITE WESTINGHOUSE 256 EMERSON ELECTRIC 257 Allegretti Co & Paramount 257 Paramount (now Poulan) 259 Taylor Woodcraft 260 Unger Division of Eldon Inc 261 Brave Corp 264 EMERSON ELECTRIC 266 __?__ (variable speed power tool motor) 268 BROTHER INTERNATIONAL 271 Kioritz Corp (Echo) 272 Arrow Products 274 RCA 278 GENERAL ELECTRIC 278 Roper 281 ELECTRO-AIRE 281 WHITE RODGERS 282 Norgren / CA Norgren 283 Thomas Industries 284 Gold Eagle 285 The Hirst Co 289 SHARP 291 American Lawn Mower 292 LENNOX 294 TUNTURI 300 Kar-Rite Corp 302 IBM 304 FUNAI 306 Belsaw / Foley-Belsaw 312 GTE 312 Milwaukee Tools 313 Harris Calorific 315 Ryan 315 RYOBI / Ryobi Motor Products 315 Diehl Mfg Co (portable power tools, prior to Ryobi) 316 MTD (yard equipment) 316 RYOBI / Ryobi America Corp 317 MAKITA 318 Right Touch Inc 319 Hand Tools International 322 Reelcraft Industries 327 Process Engineering Company 328 McLANE 328 Tru-Products Inc 329 Ametek 329 INVENTA 330 APPLE 334 COMMODORE 334 DWYER 335 AMANA 335 Welliver & Sons (drill & router accessories) 336 ELECTROLUX 338 Shop Vac 340 NECCHI 342 YORK 351 Colovos Co 355 Roper Outdoor 358 Beaird - Poulan, Inc 358 POULAN/WEEDEATER 359 Bolens Products 362 GENERAL ELECTRIC (range) 363 GENERAL ELECTRIC (refrigerator, dishwasher) 365 U.S. Lawn 366 KOSS ELECTRONICS 367 AT&T 372 Zeus Generator Corp 374 DIVERSIFIED PRODUCTS 378 Omark (Oregon) 380 Moto-Mower Inc (Dura) 385 JAMAC 387 WHITE RODGERS 390 King-O-Lawn 391 __?__ (wood & metal vises, possibly Adjustable Clamp Co) 397 Paramount/Allegretti & Co (bench grinders 1960s/70s), I believe the base motor was made by Delco. 401 BISSELL 401 SAMSUNG (microwave) 402 Stanley/Bostitch 410 Brown-Brockmeyer Co. (grinders) 410 John Bean Food Machinery Corp. 415 Char Broil 416 CARRIER 417 Kelvinator 417 Stover Engine Works 426 Parker Sweeper 429 __?__ (model 24250 3-wheel band saw) 445 Melmer 451 National Mfg (ref. 69972 sprinkler) 452 AT&T 455 J.S.Technology 457 CODE-A-PHONE 459 TECHNICS 464 GE 467 Mooradian or Master Craft 471 BIONAIRE 471 Bon-Aire 472 Dremel 473 HOOVER 473 Quincy Compressor 474 SONY 476 COLEMAN 480 BOSE 484 AIRTEMP 484 CLIMATROL 484 COMFORT BAY 484 CREST 484 CROSLEY 484 FEDDERS 484 GALAXY BAY 484 HAMPTON BAY 484 HUNTER 484 J.C. Penney & Sons Co. 484 MARTA 484 MONTGOMERY WARD 484 PROTON 484 REGENT-AIRE 484 SINGER 484 SSMSC, INC 484 SUMMIT 484 SYNCO 486 Agri-Fab 486 IMPERIAL 487 __?__ (model 19070 TFEC electric motor) 490 Indiana Steel 491 Delta Consolidated Industries 498 Didier Mfg Co 500 Briggs & Stratton 502 Murray 502 Murray Ohio 506 Columbian (bench vises) 509 PAYNE 514 Dynaquip Controls 517 HOMELITE/JACOBSEN 517 Homelite 517 JACOBSEN 521 EZ Rake 523 MGM TECHNOLOGY 527 Sherline 528 Warrick Electronics (source=Sears employee) 534 Power King Tool Corp (now Clausing Industrial) 536 AMF (Murray) 536 Noma (Murray) 536 Western Tool & Stamping 538 AMF (Murray) 542 Clark Mfg Co 549 Midwest Ind 551 unknown (models 1933-1 and 1939 RI motors from the 1950s) 552 COBRA 562 TOSHIBA 564 SANYO 565 SANYO 566 PACKARD BELL 566 SANYO 568 PANASONIC 572 Dremel 575 SHARP 576 D & M (now Frigidaire) 579 __?__ (model 27320 soldering iron-USA made) 580 GENERAC CORP 580 GOLDSTAR 582 Clinton Engine Co 583 REMINGTON/DESA 586 PANASONIC OFFICE EQUIP 587 FRIGIDAIRE 587 White Consolidated 596 AMANA 604 DIGITAL EQUIP CO 605 ___?___ (model 26320 Craftsman drill planer attachment) 609 Waterloo 610 Ohio Steel Fabrication 610 YUKON 613 CONSOLIDATED TECHNOLOGIES 619 Arps Corporation 620 ENVIRO-RESEARCH 621 BRYANT 622 Kelvinator 623 Dumore (die grinders & 25190 router, previously listed as Casco Electric) 624 Harris (welding regulators) 625 Ecodyne 626 __?__ (model 2575 Dunlap ¼" drill) 626 MAGNAVOX (PHILIPS) 626 PHILIPS (MAGNAVOX, SYLVANIA) 628 FRIGIDAIRE 628 Kelvinator 628 White Consolidated 629 JENN-AIR 629 Kelvinator 629 WILLIAMS FURNACE 636 Echo 639 King-O-Lawn 640 CERWIN VEGA 646 Chamberlain (garage door openers) 647 Roper 651 O.M.C. Dist 651 SPEED QUEEN 651 Standard Eng 654 Mott 655 Danaher 663 Air Cap Industries 664 Whirlpool (cooktop, wall over) 665 JVC (electronics) 665 WHIRLPOOL 665 Supreme Chucks, Chicago (model 256560 drill driver kit) 666 KITCHENAID 668 Echowater 678 VAC APPLIANCES, LTD 680 Generac 683 Philco (Italy) 689 S.C. America 689 Smartel 700 __?__ (old cord wood saw-model 140) 704 ROYAL 705 CANON 706 Fidelitone 706 Waterloo 7075 Prestolite Battery 716 H.H.SCOTT/EMERSON 716 MOTOROLA 719 TAPPAN 720 Vermont American 720 BVI (Burgess Vibrocrafters Inc.) 721 GOLDSTAR (Lucky Gold Star Electronics) 723 YAMAHA 724 SHERWOOD 7287 EMERSON ELECTRIC 7296 EMERSON ELECTRIC 733 Fairbanks Morse 739 Onan 745 O & R Engines 747 Litton 756 Chicago Pneumatic 757 Brinly-Hardy Co 757 EMERSON ELECTRIC 757 IMPERIAL 757 MARVEL 757 NORTHLAND 758 EMERSON ELECTRIC (early wet/dry shop vacuums) 761 Whirlpool 767 MARVEL 768 TECHNICS (MATSUSHITA) 769 Mercury Clutch Division 773 MARANTZ 775 JOHNSON 778 Comet Industries 785 General Power (Magna America) 786 Chapin (garden sprayers) 789 DEFIANCE 790 FRIGIDAIRE 791 Tappan 793 Ford 798 Speed Queen 799 Suncast 809 AMF 815 DAEWOO 831 NordicTrack 831 WESLO, INC/U.T.S. 832 XEROX 835 Roper 840 FRIEDRICH 842 Haban Mfg 846 EPSON 850 Whirlpool (Chambers?) 854 White 854 White Farm Equipment (Formerly Oliver) 855 ILG 860 EUREKA COMPANY 864 ZENITH 867 CLIMETTE 867 HEIL-QUAKER 867 KEEPRITE 867 TEMPSTAR 867 ZONAIRE 871 SMITH CORONA 875 Florida Pneumatic 879 RHEEM/RUDD 881 Hempe 900 BLACK & DECKER 900 DeWalt Products Co. 900 Elu 901 Protech 911 GENERAL ELECTRIC 911 Roper 916 Campbell Hausfeld 917 American Yard Products 917 Frigidaire 917 Roper Corp 918 DeWalt Products Co. 919 DeVilbiss 919 Ingersol Rand 920 Hobart 921 Midwest Air Technologies Inc. 922 Original Tractor Cab Corp 923 HEWLETT PACKARD 925 Maycor (Maytag) 934 Century Mfg Co 934 FUNAI 934 HITACHI 937 Air Cap Ind 937 Sunbeam 944 Husqvarna 950 LASER (V-TECH) 960 Caloric 967 Delta 973 Ryobi 987 TROY BILT/GARDEN WAY 988 KUBOTA 989 McCULLOGH 990 FORD 991 LAWNBOY