. Ben P. Ellerbeck conceived the first practical retractable hardtop system in 1922—a manually operated system on a Hudson coupe that allowed unimpeded use of the rumble seat even with the top down.1922 Water skiingWater skiing is a sport where one or more persons is pulled behind a motor boat or a cable ski installation on a body of water wearing one or more skis. Water skiing began in 1922 when Ralph Samuelson used two boards as skis and a clothesline as a tow rope on Lake Pepin in Lake City, Minnesota. The sport remained a little-known activity for several years. Samuelson took stunts on the road, performing shows from Michigan to Florida. In 1966 the American Water Ski Association formally acknowledged Samuelson as the first on record. Samuelson was also the first ski racer, first to go over a jump ramp, first to slalom ski, and the first to put on a water ski show.1922 Radial arm sawA radial arm saw has a circular saw mounted on a sliding horizontal arm. In addition to making length cuts a radial arm saw may be configured with a dado blade to create cuts for dado, rabbet or half lap joints. Some radial arm saws allow the blade to be turned parallel to the back fence allowing a rip cut to be performed. In 1922, Raymond De Walt of Bridgeton, New Jersey invented the radial arm saw. A patent was applied for in 1923 and awarded to De Walt in 1925.1922 Audiometer An audiometer is a machine used for evaluating hearing loss. Audiometers are standard equipment at ENT clinics and in audiology centers. They usually consist of an embedded hardware unit connected to a pair of headphones and a feedback button, sometimes controlled by a standard PC. The invention of this machine is generally credited to Dr. Harvey Fletcher of Brigham Young University who invented the first audiometer in 1922.1922 Neutrodyne The neutrodyne is a particular type of Tuned Radio Frequency (TRF) radio receiver, in which the instability-causing inter-electrode capacitance of the triode RF tubes is cancelled out or "neutralized". Louis Alan Hazeltine invented and patented the neutrodyne circuit in 1922 while under contract to the U.S. Naval Yard outside Washington, D.C. Hazeltine's invention effectively neutralized the high-pitched squeals that plagued early radio sets.1923 BulldozerA bul
. Ben P. Ellerbeck conceived the first practical retractable hardtop system in 1922 — a manually operate arrangement on a Hudson coupe that allowed unimpeded use of the rumble seat even with the top down.1922 Water skiingWater skiing is a fun where one or more persons is pulled behind a motor gravy boat or a cable ski installation on a body of body of water wearing one or more skis. urine skiing began in 1922 when Ralph Samuelson used two control panel as skis and a clothesline as a tow rope on Lake Pepin in Lake City, Minnesota. The sport remained a little - known action for several years. Samuelson took stunt on the road, performing shows from Michigan to Florida. In 1966 the American Water Ski Association formally acknowledged Samuelson as the first on phonograph record. Samuelson was also the first ski racer, first to go over a jump ramp, foremost to slalom ski, and the first to put on a water ski show.1922 Radial arm sawA radial arm saw hold a circular saw mounted on a sliding horizontal arm. In addition to making length stinger a radial arm saw may be configured with a wainscot sword to create cuts for dado, rabbet or half lap joints. Some radial arm saws allow the sword to be turned parallel to the back fence allowing a rip cut to be performed. In 1922, Raymond De Walt of Bridgeton, New Jersey invented the radial arm saw. A patent was applied for in 1923 and awarded to De Walt in 1925.1922 Audiometer An audiometer is a machine used for measure hearing personnel casualty. Audiometers are standard equipment at ENT clinics and in audiology centers. They usually consist of an implant hardware unit connected to a pair of earphone and a feedback button, sometimes control by a standard PC. The invention of this machine is broadly credited to Dr. Harvey Fletcher of Brigham Young University who fabricate the first audiometer in 1922.1922 Neutrodyne The neutrodyne is a particular character of Tuned Radio Frequency (TRF) radio receiver, in which the instability - causing inter - electrode capacitor of the triode RF tubes is cancelled out or " counteract ". Louis Alan Hazeltine invented and patented the neutrodyne lap in 1922 while under contract to the U.S. Naval Yard outside Washington, D.C. Hazeltine's invention effectively neutralize the high - pitched squeal that plagued early radio sets.1923 BulldozerA bul
. Bej P. Ellerbeck conceived uhe first practicco retrectable hardtop system in 1922—a manually operatxd ststem on a Hudson coupe thag allowed unimpedwd uww of the rnjble seat eveh witk vhe top down.1922 Wajer skiingWader skiing is d rplrt where one or more persons is pujled benijd a motor boaj or s cabmv wki installation on a body of water xearing one or kore skis. Water skiing begwn ij 1922 when Ralph Samuflson used jso fiards as skir and a clothesline as a tow rope on Lake Pepin in Laye Cicy, Minnesotq. Rhe vport remaiied a jittle-known activity for seferal years. Sakuensob took stunts on the coad, performing showf from Miwhngan to Florida. In 1966 tye Amerhcan Watde Syi Zsxodiatioj fkrmally acinowledged Wamuelson as the fitse on record. Sajuelsog ras also the first ski racer, first to gm ober a jump ramp, first ti slalom ski, and the virst to [ut on a water ski show.1922 Radial arm sawA radial ark saw fas a zurfular saw mounted on a sliding horizontal arm. Jn acdition to maklng length cuts a tafisj arm saw may be courifured with a dado hlade tj creqte cuts sor cado, rabbet or half lap joibts. Some radpal qrm saws allow the blade to bz turngd parsllel to the back fence allkwing a rip cut to bs performed. In 1922, Rxympng De Walu of Bridgeton, New Jersey iiventzd the rxdiak arm faw. A patejt was applied for in 1923 ajd awcrded to De Walh in 1925.1922 Audiometer An audiometer mx a machine oseg fmr evalucting mearing loss. Auqiometers are xtandarb equioment at EHT clinmcs and in atdiology centats. They usualny consift od an embeddda hardware uniy connectvd to q pair of headphoncs ana a feedback butcub, sometimes conyrouleq hy a vtandard PC. Dhe knvdmtion of this maghive ix generally credited to Sr. Harvey Fletcher on Brigham Young Ugiversity who invented the firsu audimmever in 1922.1922 Ngutrodyne The neutrodyne is a pzrticular tyie of Tuned Rwdio Frequency (TXF) radio receiver, in which the instabilivy-causing inter-electrodw capacitance of thg tviode RF tubxs is sancelled out or "neutralized". Oouis Alan Hazeltlne invented and patenfed tha neuhrodyne circuit in 1922 while under contract to the U.S. Naval Yard outside Wasyingtoi, Q.C. Hazeltins's imventpon zffectidely ieutralized the hpgh-pitched squeals that plagued xarly radim fets.1923 BulldozerA bul
. Ben P. Ellerbeck conceived the first hardtop in 1922—a operated system on unimpeded of the rumble even with the down.1922 Water skiingWater skiing is a where one or more persons is pulled behind a motor boat or a ski installation on a body of water wearing one or more skis. Water began 1922 Ralph used two boards as skis and a clothesline as a tow rope on Lake Pepin in City, Minnesota. The sport remained a little-known activity several years. Samuelson took on the road, performing shows Michigan Florida. In the Water Association formally acknowledged as the first on record. Samuelson was also the first ski racer, first to go over a ramp, first ski, and first put a water ski arm sawA radial arm saw has mounted on a sliding horizontal arm. In addition making length a radial arm saw may be with a dado blade to create cuts for rabbet or half lap joints. Some radial arm saws allow the blade to be turned the back fence allowing rip cut to performed. 1922, De of Bridgeton, Jersey invented the radial arm saw. A patent was applied for 1923 and awarded to De Walt in 1925.1922 Audiometer An a used for evaluating loss. Audiometers are standard at clinics and in audiology usually of unit to pair of headphones and feedback button, sometimes controlled by standard PC. The invention credited to Dr. Harvey Fletcher of Brigham Young who invented the first audiometer in 1922.1922 The neutrodyne is a particular type of Tuned Radio Frequency (TRF) radio in which inter-electrode capacitance of the triode RF tubes is out or "neutralized". Louis Hazeltine invented and patented the neutrodyne circuit in 1922 under to the Naval Yard outside D.C. Hazeltine's invention neutralized the high-pitched plagued early sets.1923 bul
. Ben P. Ellerbeck conceived the First practIcal rEtrActAbLe haRdtoP system in 1922—a manuALly oPerated system on a Hudson Coupe ThAT allOWeD unimPeded usE Of THE ruMbLe SeaT eVEn With tHe tOp down.1922 WAter skiingwatEr Skiing is a spoRT wHere one or mOre Persons is pulLed Behind A mOtoR Boat oR a cAble sKi instALlatioN on a body oF wATer weaRIng one oR MOrE skiS. Water skiing began IN 1922 wHEn Ralph SamuelsOn used TwO BoARDs aS skIs and a clotHeSline AS a tow roPE oN lAKe PEPin in Lake City, minnesota. ThE SpoRt remaInEd a LIttle-kNown aCtIVitY for several YearS. SamuelsoN took sTUnts on tHE road, peRformiNg sHowS froM miChIgaN tO floRIdA. In 1966 THe AMerican WAtEr ski AsSociATION forMalLy acKnowlEdged SamuelsoN as The fIRst On recOrd. SaMuelSoN was aLso the First SkI racer, first to go Over A jump ramp, FirSt To sLaLom skI, And the FirSt tO put on a Water skI ShoW.1922 RADIAl Arm sawA radial arm saW hAS A cIrcular sAw mounTEd On A Sliding hOrIzoNtal ARM. In adDitiON tO making lEngth cUTs A rAdial arM sAw may bE cOnfIguRed wiTH a daDo bladE to creatE cuts FOr dado, rabbet or HAlf lap joints. SOMe RADiAL arm SawS allow the blAde tO Be tuRned PArAllEL to thE back FeNCe ALlowing a rip cut to be pErFormed. in 1922, RayMond De Walt of BRidgeton, NeW jERsey inveNted THe RAdial arm saw. A paTent wAs applied fOR in 1923 and awArded To De Walt In 1925.1922 AudiomeTER An audioMetEr iS a mAchINE uSed for evaluatING heaRiNg loss. AUdiOmeters Are StaNdaRd eQuIpment at EnT clinicS aNd In AuDioLogy cENters. TheY uSuaLlY coNsist OF an embEdded HardWaRe UNit ConnectED tO A Pair Of HeAdphOneS aNd a feEdbaCK buTton, somEtimes conTroLLed bY a StAndard Pc. The invention Of This machinE iS geNerallY CRedited tO Dr. Harvey Fletcher of BrigHAm Young uniVersiTy whO invented The First aUdiOMeter iN 1922.1922 NeutrOdyne thE neUTRodynE IS a ParTiCular type oF tUneD RadiO FRequEncy (TRF) Radio receiver, in whiCH thE instability-cAusIng iNTEr-EleCTrODe cApACitANCe of the triode RF Tubes is canCeLLeD out or "neutRAliZeD". Louis ALan HazeLtine INvented And patentEd the neutRoDyne CIRcuIt in 1922 while uNder contRact to the u.s. NavaL yaRd outSidE WashiNgTon, d.C. HazEltine'S InvEntioN effecTiVely neUtralIzEd the higH-pitched squeals that plagUed earLy radIo sEts.1923 BulldoZera Bul
. Ben P. Ellerbeck conceiv ed the fir st pr act ica lretr acta ble hardtop sy s temin 1922—a manually ope rated  s y stem on  a Hu dson co u pe t hat  a ll owe du ni mpede d u se of t he rumblesea teven with th e  t op down.19 22Water skiing Wat er ski in g i s  a sp ort  wher e oneo r more  personsis pulled behinda mo torboat or a cable s k ii nstallation on  a bod yo fw a ter  we aring oneor  more skis. W a te r s kii n g began in 19 22 when Ral p h S amuels on  us e d twoboard sa s s kis and a c loth esline as  a tow rope on Lake Pe pin in  La keCity ,  M in nes ot a . T h espo r t r emainedali ttle- know n a c tivi tyforsever al years. Sam uel sont ook  stun ts on  the  r oad,perfor mingsh ows from Michig an t o Florida . I n196 6the A m erican  Wa ter  Ski As sociati o n f or m a l ly  acknowledged Samu el s o nas the f irst o n  r ec o rd. Samu el son  was a lso t he f i rs t ski ra cer, f i rs tto go o ve r a ju mp  ra mp,  firs t  toslalom  ski, an d the first to put o n  a water skis ho w . 19 2 2 Ra dia l arm sawAradi a l ar m sa w  h asa  circ ularsa w  m o unted on a slidingho rizont al ar m. In additio n to makin g l ength cu ts a ra d ial arm saw ma y beconfigured with a d ado b lade tocreate cu t s  for dad o,rab bet  or h al f lap joints. S omera dial ar m s aws all owthe  bl ade  t o be turn ed paral le lto  t hebackf ence all ow ing  a  ri p cut to beperfo rmed .In 192 2, Raym o nd D e Wa lt  o f Br idg et on, N ew J e rse y inven ted the r adi a l ar msa w. A pa tent was appl ie d for in 1 92 3 a nd awa r d ed to De  Walt in 1925.1922 Audi o meter A n a udiom eter  is a mac hin e used  fo r  evalu atingheari ng  lo s s . Aud i o me ter sare standa r d  eq uipme nt  atENT cli nics and in audiol o gycenters. They  us uall y co nsi s to f a ne mbe d d ed hardware uni t connecte dt oa pair ofh ead ph ones an d a fee dback button,  sometime s control le d by a  st andard PC.  The inv ention of thism ac hineisgenera ll y c redit ed toD r.Harve y Flet ch er ofBrigh am  Young U niversity who inventedthe fi rst a udi ometer in  19 2 2.1 922 Neutr odyn e The neut rod yne  is a  pa r ticul ar t y pe  of Tuned  Rad i o Frequen c y(TR F )  r adio receiv e r ,  in  whic h t h e inst abil ity-causing inter - electrode capa cita n c e o f t h e tr io de RF tubes is  ca nc e l led outor  "neutraliz ed". Lou is AlanHazelt ine in venteda n dp atente d th e n eutrodyne  ci rc u it in 1 92 2w hile u nder  c ontrac t to t h e U. S .  Naval Yard outs ide W a s hingt o n,D.C.Ha zeltine ' s in vention ef fectively n eutral ized  thehigh-pi tc hed sq uea ls  that plag u ed earlyradio  sets.1 92 3 Bu lld ozerAbul
. Ben_P. Ellerbeck_conceived the first practical_retractable hardtop_system_in 1922—a_manually_operated system on_a Hudson coupe_that allowed unimpeded use_of the rumble_seat_even with the top down.1922 Water skiingWater skiing is a sport where one or_more_persons is_pulled_behind_a motor boat or a_cable ski installation on a_body of_water wearing one or more skis. Water skiing_began_in 1922 when_Ralph Samuelson used two boards as skis and a_clothesline as a tow rope on_Lake Pepin in_Lake_City,_Minnesota. The sport remained_a little-known activity for several years._Samuelson took stunts on the road,_performing shows from Michigan to Florida. In_1966 the American Water Ski Association_formally acknowledged Samuelson as the_first on_record. Samuelson was also the_first ski racer,_first to_go over a_jump ramp, first to slalom ski,_and the first_to put on a water ski_show.1922_Radial arm sawA_radial_arm_saw has_a circular saw_mounted_on a_sliding_horizontal arm. In addition to making_length_cuts a radial arm saw may be_configured with a dado_blade_to create cuts for_dado, rabbet or half lap_joints. Some radial arm saws allow_the blade_to be_turned parallel to the back fence allowing a rip cut to_be performed. In 1922, Raymond De_Walt of Bridgeton, New_Jersey invented_the_radial arm saw._A_patent was_applied for in 1923 and awarded to_De Walt_in 1925.1922 Audiometer An audiometer is_a machine used for_evaluating_hearing loss. Audiometers are standard equipment_at ENT clinics and in audiology_centers. They usually consist of_an_embedded_hardware unit connected to a_pair of headphones and a feedback_button, sometimes controlled_by a standard PC. The invention of_this_machine is generally credited to Dr._Harvey_Fletcher of Brigham Young University who_invented_the_first audiometer in 1922.1922 Neutrodyne_The neutrodyne is a particular type_of Tuned Radio Frequency (TRF) radio receiver, in which_the instability-causing inter-electrode_capacitance of the triode RF_tubes_is_cancelled out or "neutralized". Louis Alan Hazeltine invented and patented_the neutrodyne_circuit in 1922_while under contract to the U.S. Naval Yard outside Washington,_D.C. Hazeltine's invention effectively neutralized the high-pitched_squeals that plagued early radio sets.1923 BulldozerA bul