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logarithmic graphs on paper texture
Close up detail of a log/log slide rule isolated on a black background.
An illustration of a diagram of Continuous spectrum illustrating the process of light refraction through a photon lens
Human hand change wooden cube block from 1.5??C to 2??C.
Solar radiation analysis of a public building. Multipurpose common public space analysis with parametric louvers to control sun exposure and radiation.
Full day in hours, clocks isolated on white.
Thulium, Ytterbium, Lutetium on the periodic table of the elements on black blackground,history of chemical elements, represents the atomic number and symbol.,3d rendering
blue bubble with h2 text
Stock market graphic. Stock price chart. Financial and business concept.
Periodic system. Closeup of some elements
Close-up, simple image of a ruler
Results from a lung/pulmonary function test (PFT). Shows spirometry graphs and measurements. Results are  within normal limits. PFTs are used to diagnose respiratory problems.
3d render. Green energy concept isolated on black background.
Retro library card with smudged stamped due dates from the 1960's
printout on a contraction monitor in a delivery room
Scientific charts, cardiograms and mathematical calculations
Friday, September 13th on the calendar
old slide rule slipstick analogue computer for mathematical calcululs, top view
Simple yellow triangular surface with binary computer data and hexagon pattern. Conceptual design in the domain of data, virtual reality, computing and technology.
Calcium carbonate chip in chemical watch glass with molecular structure on white laboratory table. Side view
A studio shot of a mechanical metronome.
An illustration of discontinuous spectrum, occurs when excited atoms emit light of certain wavelengths,
Engineering tolerance table
close up. figures on the financial chart .business background.
A kindergarten progress report card from the 1987 - 1988 school year. Reading readiness.
Background from table with numbers
Number 10 Pattern Design on Banknote
How a lithium ion battery works, 3d render, section. Battery charging and discharging. Ions flow from the anode to the cathode separated by a liquid electrolyte as the battery discharges energy
3d render. Green energy concept isolated on white background.
Free Images: "bestof:EB1911 Calorimetry Fig.2.jpg en EB1911 Calorimetry Fig 2 1911 Encyclopædia Britannica 1911 Hugh Longbourne Callendar other versions PD-old-70-1923 1911"
Al-Idrisi's_world_map.JPG
Statue Jean Guiton maire La Rochelle.jpg
Xavier GUICHARD directeur de la PJ de Paris de 1930 à 1934 (jeune).jpg
Newspapers_periodicals_10c_die_proof_1915_issue.jpg
keyboard-instrument-music-old-436488.jpg
Relief CoA of city, Carlos III bridge, Miranda de Ebro, Spain.jpg
Prokudin-Gorskii-19-v2.png
Entenhäuser_von_August_Haake.jpg
Gustave_Courbet_-_Le_Château_de_Chillon_-_Musée_des_Beaux-Arts_de_Belfort.jpg
CCC-ID_banquet_-_NARA_-_285420.tif
CCC-ID_banquet_-_NARA_-_285420.jpg
Roland_Garros.jpg
Sacramento,_California._A_typical_dwelling_in_Louis'_Camp_-_NARA_-_521730.jpg
Maricopa_County,_Arizona._Cotton_picker_coming_down_the_row_-_NARA_-_522045.jpg
Sacramento,_California._Close-up_of_home_in_Louis'_Camp_-_NARA_-_521721.jpg
Edison,_Kern_County,_California._Close-up_potato_camp_-_NARA_-_521784.jpg
Near_Eloy,_Pinal_County,_Arizona._Cotton_wagon_in_the_field_-_NARA_-_522240.jpg
Edison,_Kern_County,_California._Close-up_of_potato_camp_-_NARA_-_521782.jpg
Near_Coolidge,_Arizona._Gathering_lint_-_NARA_-_522209.jpg
Taos_County,_New_Mexico._Farm_Security_Administration_supervisor,_client_F.S.A._office,_Taos._-_NARA_-_521970.tif
Near_Eloy,_Pinal_County,_Arizona._New_cotton_lands_in_the_Eloy_District._-_NARA_-_522223.jpg
Taos_County,_New_Mexico._Farm_Security_assistant_supervisor_and_client,_FSA_office,_Taos._-_NARA_-_521971.tif
Taos_County,_New_Mexico._Farm_Security_representative_addresses_group_interested_in_the_setting_up_._._._-_NARA_-_521968.tif
Pinal_County,_Arizona,_outskirts_of_Eloy._Grower's_camp_for_cotton_pickers._-_NARA_-_522222.jpg
Contra_Costa_County,_California._Another_view_of_the_Davis_Auto_Camp_housing._-_NARA_-_521776.jpg
Near_Eloy,_Pinal_County,_Arizona._Grower's_camp_for_cotton_pickers._-_NARA_-_522224.jpg
Near_Eloy,_Pinal_County,_Arizona._Weighing_the_cotton_of_a_migrant_boy._-_NARA_-_522216.jpg
Pinal_County,_Arizona._Migratory_cotton_picker_working_in_the_field._-_NARA_-_522012.jpg
Near_Eloy,_Pinal_County,_Arizona._Twelve-year-old_boy_picking_cotton_in_the_field._-_NARA_-_522236.jpg
South_of_Eloy,_Pinal_County,_Arizona._Grower's_camp_for_migratory_cotton_pickers._-_NARA_-_522497.jpg
Tulare_County,_California._Cheap_auto_camp_housing_for_citrus_workers._-_NARA_-_521799.jpg
Maricopa_County,_near_Litchfield,_Arizona._Vosberg_Ranch,_grower's_camp_for_hop_pickers._-_NARA_-_522258.jpg
Near_Eloy,_Pinal_County,_Arizona._Mexican_cotton_pickers_walk_back_to_camp_for_lunch._-_NARA_-_522048.jpg
Contra_Costa_County,_California._Type_of_facilities_in_the_Davis_Auto_Camp._-_NARA_-_521773.jpg
Near_Coolidge,_Arizona._Farmhouse_on_Casa_Grande_cooperative_farm_project_(FSA)._-_NARA_-_522489.jpg
Taos_County,_New_Mexico._Farm_Security_Administration_supervisor,_client_F.S.A._office,_Taos._-_NARA_-_521970.jpg
Sacramento,_California._Close-up_of_living_conditions_for_children_in_Louis'_Camp._-_NARA_-_521723.jpg
Maricopa_County,_near_Litchfield,_Arizona._Vosberg_Ranch,_grower's_camp_for_hop_pickers._-_NARA_-_522259.jpg
Contra_Costa_County,_California._Entrance_to_labor_camp,_on_large-scale_fruit_ranch._-_NARA_-_521717.jpg
Pinal_County,_Arizona._Migratory_cotton_picker_weighing_in_his_morning's_work_at_the_cotton_wagon._-_NARA_-_522010.jpg
Near_Coolidge,_Arizona._Feedyard_at_Casa_Grande_farms_(FSA)._Dairying,_cattle_feeding,_and_cotton_p_._._-_NARA_-_522487.jpg
Pinal_County,_Arizona._Outskirts_of_Eloy._Grower's_camp_for_cotton_pickers._-_NARA_-_522381.jpg
Near_Buckeye,_Maricopa_County,_Arizona._(African-American)_cotton_pickers_plant_in_brush._-_NARA_-_522043.jpg
Eloy,_Pinal_County,_Arizona._Young_American_family_-_migratory_cotton_pickers,_in_town_on_Saturday_a_._._._-_NARA_-_522049.jpg
Eloy,_Pinal_County,_Arizona._Crowds_of_cotton_pickers_on_main_street_of_Eloy_late_Saturday_afternoon._-_NARA_-_522054.jpg
Near_Coolidge,_Arizona._White_cotton_picker_gathers_the_lint._-_NARA_-_522237.jpg
Near_Buckeye,_Maricopa_County,_Arizona._Migratory_cotton_pickers_in_grower's_camp._-_NARA_-_522242.jpg
Near_Buckeye,_Maricopa_County,_Arizona._Migratory_cotton_pickers_in_grower's_camp._-_NARA_-_522243.jpg
Coolidge,_Arizona._On_main_street_of_Western_cotton_town_Saturday_afternoon_during_cotton_harvest._-_NARA_-_522264.jpg
Coolidge,_Arizona._On_main_street_of_Western_cotton_town_Saturday_afternoon_during_cotton_harvest._-_NARA_-_522265.jpg
Eloy,_Pinal_County,_Arizona._Facade,_Arizona_cotton_town_during_harvest._-_NARA_-_522276.jpg
Eloy,_Pinal_County,_Arizona._Part_of_main_street_of_a_typical_Western_town._-_NARA_-_522277.jpg
Eloy,_Pinal_County,_Arizona._Part_of_main_street_of_a_typical_Western_town._-_NARA_-_522278.jpg
Eloy,_Pinal_County,_Arizona._Orange_and_blue_stamps_swell_the_migratory_cotton_pickers'_demand_for_f_._._._-_NARA_-_522281.jpg
Eloy,_Pinal_County,_Arizona._Photographers_also_migrate_with_the_cotton_pickers._Saturday_afternoon_._._._-_NARA_-_522282.jpg
Eloy,_Pinal_County,_Arizona._The_streets_of_Eloy_are_crowded_with_cotton_pickers_on_Saturday_afterno_._._._-_NARA_-_522283.jpg
Near_Buckeye,_Maricopa_County,_Arizona._Migratory_cotton_pickers_in_grower's_camps._-_NARA_-_522545.jpg
Chandler,_Maricopa_County,_Arizona._Auto_camp_for_cotton_pickers._-_NARA_-_522547.jpg
Eloy_District,_Pinal_County,_Arizona._Child_in_cotton_picker's_camp._-_NARA_-_522016.jpg
Eloy_District,_Pinal_County,_Arizona._Water_supply_for_migratory_cotton_pickers_in_FSA_mobile_camp_j_._._._-_NARA_-_522022.jpg
Coolidge,_Arizona._Toilet_in_district_on_edge_of_town_-_NARA_-_522035.jpg
Chandler,_near_Pima_County,_Arizona._"No_descriptive_detail_given"_(woman_leaning_against_car)._-_NARA_-_522039.jpg
Coolidge,_Arizona._Main_street_of_Coolidge_on_Saturday_afternoon_during_cotton_harvest._-_NARA_-_522056.jpg
Coolidge,_Arizona._Indians,_Negroes,_Mexicans,_and_white_Americans_buy_food,_clothing,_and_seek_recr_._._._-_NARA_-_522512.jpg
Eloy_District,_Pinal_County,_Arizona._Government_camp_for_migratory_pickers_near_Eloy,_Arizona._This_._._._-_NARA_-_522029.jpg
Eloy,_Pinal_County,_Arizona._Close-up_of_a_squatter_camp_-_NARA_-_522274.jpg
Eloy_District,_Pinal_County,_Arizona._Government_camp_for_migratory_pickers_near_Eloy,_Arizona._This_._._._-_NARA_-_522020.jpg
Edison,_Kern_County,_California._Children_of_young_migratory_parents._They_originally_lived_in_Texas._-_NARA_-_521786.jpg
Coolidge,_Arizona._Weighmaster_keeps_his_books_at_the_cotton_scales._-_NARA_-_522046.jpg
Taos_County,_New_Mexico._Farm_Security_assistant_supervisor_and_client,_FSA_office,_Taos._-_NARA_-_521971.jpg
Near_Buckeye,_Maricopa_County,_Arizona._Store_at_grower's_camp_for_migratory_cotton_pickers._Surplus_._._._-_NARA_-_522539.jpg
Near_Buckeye,_Maricopa_County,_Arizona._Migrant_(African-American)_cotton_picker_and_her_baby._-_NARA_-_522540.jpg
Near_Buckeye,_Maricopa_County,_Arizona._Sister_of_cotton_picker._-_NARA_-_522541.jpg
Eloy_District,_Pinal_County,_Arizona._Entrance_to_cotton_camp._-_NARA_-_522019.jpg
Eloy,_Pinal_County,_Arizona._Young_American_family_-_migratory_cotton_pickers,_in_town_on_Saturday_a_._._._-_NARA_-_522050.jpg
Eloy,_Pinal_County,_Arizona._Young_cotton_picker_wears_the_typical_Texas_sunbonnet_in_the_Arizona_co_._._._-_NARA_-_522235.jpg
Near_Coolidge,_Arizona._White_cotton_picker_gathers_the_lint._-_NARA_-_522238.jpg
Coolidge,_Arizona._On_main_street_of_western_cotton_town_Saturday_afternoon_during_cotton_harvest._-_NARA_-_522266.jpg
Eloy,_Pinal_County,_Arizona._The_streets_of_Eloy_are_crowded_with_cotton_pickers_on_Saturday_afterno_._._._-_NARA_-_522510.jpg
Near_Buckeye,_Maricopa_County,_Arizona._Migratory_cotton_pickers_in_grower's_camp._-_NARA_-_522544.jpg
Near_Buckeye,_Maricopa_County,_Arizona._Child_of_(African-American)_cotton_pickers_in_grower's_camp._-_NARA_-_522675.jpg
Eloy_District,_Pinal_County,_Arizona._The_cotton_wagon_arrives_at_the_ginyard._-_NARA_-_522520.jpg
Eloy,_Pinal_County,_Arizona._Main_street_of_a_western_cotton_town_on_Saturday_afternoon_during_harve_._._._-_NARA_-_522515.jpg
Eloy,_Pinal_County,_Arizona._For_the_possessions_of_migratory_cotton_pickers._-_NARA_-_522051.jpg
Eloy,_Pinal_County,_Arizona._Crowds_of_cotton_pickers_on_main_street_of_Eloy_late_Saturday_afternoon._-_NARA_-_522057.jpg
Pinal_County,_Arizona._Many_children_work_in_the_cotton_fields_around_Eloy_during_school_hours._-_NARA_-_522013.jpg
Pinal_County,_Arizona._Texas_cotton_picker_works_in_Arizona_cotton_field._-_NARA_-_522014.jpg
Cashion,_Maricopa_County,_Arizona._Self-resettlement_on_the_familiar_pattern_common_in_California,_W_._._._-_NARA_-_522521.jpg
Eloy,_Pinal_County,_Arizona._Storage_yard_of_cotton_mill_-_NARA_-_522518.jpg
Near_Coolidge,_Arizona._Feedyard_at_Casa_Grande_farms_(FSA)._Dairying,_cattle_feeding,_and_cotton_p_._._-_NARA_-_522486.jpg
Chandler,_Arizona._Twenty-seven_families_live_on_the_320-acre_farm._This_is_cooperative_subsistence-_._._._-_NARA_-_522176.jpg
Chandler,_Maricopa_County,_Arizona._Detail_of_unit_on_FSA_cooperative_part-time_farm._-_NARA_-_522197.jpg
Chandler,_Maricopa_County,_Arizona._The_community_building_of_the_FSA_co-operative_part-time_farm._-_NARA_-_522531.jpg
Cortaro_Farms,_Pinal_County,_Arizona._Letting_down_the_sack_from_the_scales,_old_migrant_cotton_pick_._._._-_NARA_-_522188.jpg
Cortaro_Farms,_Pinal_County,_Arizona._Quarters_for_Negro_cotton_pickers_on_industrialized_cotton_fa_._._._-_NARA_-_522498.jpg
Cortaro_Farms,_Pinal_County,_Arizona._Part_of_equipment_yard_seen_from_water_tower._-_NARA_-_522501.jpg
Cortaro_Farms,_Pinal_County,_Arizona._Quarters_for_Negro_cotton_pickers_on_industrialized_cotton_far_._._._-_NARA_-_522499.jpg
Cortaro_Farms,_Pinal_County,_Arizona._View_of_21,000_acre_industrialized_farm_looking_west_from_wate_._._._-_NARA_-_522500.jpg
Cortaro_Farms,_Pinal_County,_Arizona._Migratory_cotton_picker_on_Cortaro_Farms._-_NARA_-_522199.jpg
Cortaro_Farms,_Pinal_County,_Arizona._Migratory_cotton_picker_on_Cortaro_Farms._-_NARA_-_522194.jpg
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