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    ϣ·?sh)?middot;ƝHeinrich Rudolf Hertz1857꣨꣩222գ1894꣨꣩11գ‡W(xu)1888C늴ŲĴ늴ŌW(xu)кܴؕIlʵćHλֺƝ189437qĺƝ锡ѪYڲӢ

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    ų

    1857꣨꣩222պƝڵ‡hһŻ̵Īq̫ͥHǝhǵһĸHһλt(y)Ů

    W(xu)֮·

    ȥִW(xu)x֮ǰѽ(jng)չF(xin)õĿƌW(xu)ZxϲgW(xu)(x)Z(jng)ڵ‡˹DĽںͰֵȵ،W(xu)(x)ƌW(xu)͹̌W(xu)ǹ˹·ͺՠ··ķƝČW(xu)1880Ɲ@òʿW(xu)λ^m(x)SķƝW(xu)(x)ֱ1883յԻW(xu)ՓW(xu)vՈ

    һ˰ƝD(zhun)‡ϲ߅Ŀ˹(Karlsruhe)g(sh)W(xu)Ժ(dn)ϵ_ʼb늌W(xu)ңnrʾ늌W(xu)fҲһֻՓͿ֪H

    СW(xu)УČ򞽛(jng)Mٵÿɑzsһcһһgܵ늴ŌϵϽnjW(xu)Ķࠖ(MaxDoll)ںp֪@pһNc˱^L(fng)ՈƝŮɳ(ElisabethDoll)Bo

    ɳ׺팑£ƝǹһNJȫΨһ˽ǹʲôMǹDzͬĹwҎ(gu)ɵذl(f)ͬlʵ늴ŲϡfҹֻҎ(gu)t(zhn)_Ɲś]eʮo(j)ȫ늴ŲЃˣһλǷ(MichaelFaraday)һλǺƝ

    Ɲ

    ɳײ늴Ų֪@λƌW(xu)֮ʿҲһƬ\cֱJRĂ¾ͽY(ji)飬(dng)rƝʮŚq

    ƝҵĚwޣչ_һо@һоijɹ~sϵѦĬʿ(MorrisHShamos)vʷW(xu)٤Ե˹̹J팍ҾǺƝƝԌCǧŵiF--ı|(zh)늴Ų

    l(f)F(xin)늴Ų

    1885@ÿ˹W(xu)Y񣬲l(f)F(xin)늴Ų1885꣬W(xu)(zhn)xƝ鸱Ը@һՓW(xu)ҵšλڴ˕r˹򹤘I(y)W(xu)(zhn)oƝW(xu)šλ]ԓW(xu)^õо˿˹W(xu)Ɲڿ˹еЩªԼδо]аSĕrgƝ˃ɼ¡18867ڽ(jng)^µ֮ƝcһλͬµŮɯ·ࠖ(ElisabethDoll)顣SƝֲKǂo•u늴Ų

    ƝڰִW(xu)SՠķƝW(xu)rܺՠķƝ֮Ąо˹f늴Փ(dng)r‡fc˲r͵Փ˺Ɲ͛QԌCfc˹fՓl_˹fՓ는_ݗ늴ŲƝ(j)(jng)늻϶a(chn)ʎԭO(sh)Ӌһ늴Ųl(f)ƝһБ(yng)Ȧăɶ˽ڮa(chn)~(dng)Б(yng)ȦͻȻДrБ(yng)늉ʹ늻϶֮ga(chn)𻨡˲g늺ɱ㽛(jng)늻϶\gʎlʸ_(sh)f˹fՓ˻𻨑(yng)a(chn)늴ŲǺƝO(sh)Ӌһεęz̽y늴ŲһСΌ(do)ɈAăɶcgС늻϶늴Ų(yng)ڴСȦϮa(chn)Б(yng)늉ʹ늻϶a(chn)һ҃(ni)zʎ10hY(ji)l(f)F(xin)z늻϶g_С𻨮a(chn)Ɲڰh˵ĉϸпɷ늲\壬䲨c䲨دB(yng)a(chn)vҲԙzھʎͬx̎ɜyCƝʎlʣԙzvIJL߳˷e늴ŲĂٶȡ˹fA(y)yһ늴Ųٶȵڹ

    1888ƝČɹˣ˹fՓҲ˫@˟oϵĹƝڌrָ늴ŲԱͬҊᲨһӵıƫʎl(f)늴Ųƽƫ늈ƽʎČ(do)ňֱ늈҃߾ֱ1889һfƝ_ָһN늴ŬF(xin)һ늴ŲfӍϢ1896R_ʼ1901RֳɹČӍ̖͵˰20o(j)oͨӍˮ@˵İl(f)չƝ򞲻HC˹f늴Փoҕ_İl(f)չҵ;S~ˠd1881MеČ1887~ˠd-Ī׌Ʒ˹̫ĴƝČ˹f̽Mµİl(f)F(xin){ͨ^C̖ղķʿ·˹f~ˠ·A(y)ԵǘӿԴԽ՚@һՓǰl(f)o늵ĻA(ch)ע⵽w(dng)rܿʧȥ늺ɣl(f)F(xin)˹Ч(yng)ɰ·˹̹oጣ

    Ӣ

    189437qĺƝ锡ѪYڲӢšֶӹ˹··¾S·ƝZؐ@˹ăӿ·Ī˹·Ɲ(chung)˳•Ӱt(y)W(xu)

    ؕI

    (dng)˂Ըrs1894ԪѪжH36q˼o(j)Ĺ˂ցNlʵĆλQա

    ƝҲLJHλlʵĆλÿе׃؏(f)Δ(sh)Ӌ

    Ɲցڵ‡W(xu)Һϣ·?sh)?middot;Ɲ̖Hz늣늉ֱͽ֮ͨő(yng)̖ݔ?sh)һ㶼ǽ늡׃Ľ̖Srg׃ȕrrؓһٶǰ

    ͨ҂Ҳ1犃(ni)؏(f)׃Δ(sh)Q̖ġlʡfʾ̖׃һĕrgQڡTʾλMһ(jng)^ľxQ顰Læ˱ʾמλfTͦ˴P(gun)ϵf=1/Tv=.fv늴ŲĂٶ3x10^8/lʵĆλǺƝQգԷ̖HzʾƝH·Hertzǵ‡W(xu)ң1887ͨ^C늴ŲĴ˞˼o(j)ѡƝlʵĆλõlʆλ߀ǧգKHz׺գMHzգGHzdϢ̖ЕrNlʳɷ@ЩɷlSϵλØ(bio)ʾʾÿNɷڹʻ늉ϵĴС@̖ġlVռ(j)lʷͽ̖lԒͨУԒ̖lʷ3003400{(dio)l(FMV•lʷ40ա15ǧգҕV̖lʷ04.2׺յ

    x

    ϣ·?sh)?middot;ƝHeinrichRudolfHertz18861888gͨ^ԇC˹fՓC˟oݗвl(f)F(xin)늴ň̿ƫ΢ַ̱_ͨQ鲨ӷ1887115ƝڼĽoķƝһƪ}顶Փڽ^w^ĸБ(yng)F(xin)󡷵ՓY(ji)@Ҫl(f)F(xin)Ɲ߀ͨ^_J늴ŲǙMcƵ練Ҍ˃늴Ųĸ棬ͬrCֱr늴ŲĂٶcͬĶȫC˹f늴Փ_Mһ˹f̽MʹӃ(yu)Qó˹f̽MĬF(xin)ʽƝһϵЌо⌦𻨷늵Ӱl(f)F(xin)˹Ч(yng)ڹwጷųӵĬF(xin)@һl(f)F(xin)ː˹̹ՓĻA(ch)

    18881Ɲ@ЩɹY(ji)ڡՓЧ(yng)ĂٶȡһƝ򞹫ZȫĿƌW(xu)硣ɷ_(chung)˹fY(ji)늴Փ˲ȡÛQԵĄ1888˽ƌW(xu)ʷϵһ̱Ɲİl(f)F(xin)ЄrxHC˹fl(f)F(xin)Ҫ_(chung)˟oӼg(sh)¼o(j)ԪS~ˠd1881MеČ1887~ˠd-Ī׌Ʒ˹̫ĴڣƝČ˹f̽Mµİl(f)F(xin){ͨ^򞣬C̖ղķʿ·˹f~ˠ·A(y)ԵǘӿԴԽ՚@һՓǰl(f)o늵ĻA(ch)ע⵽w(dng)rܿʧȥ늺l(f)F(xin)˹Ч(yng)ɰ·˹̹oጡ

    Ч(yng)

    䵽ijЩ|(zh)|(zh)|(zh)l(f)׃@׃ĬF(xin)˂y(tng)QЧ(yng)ٱڹݗ°l(f)ӵЧ(yng)l(f)ӽⲨLСijһRֵrܰl(f)O޲L(yng)ĹlʽOlRֵȡQڽٲl(f)ӵȡQڹIJLc⏊ȟoP(gun)@һcoùIJԽ߀һccIJìܣЧ(yng)˲rՓ^ĕrgҪLһЩеӲܷeסwٱŒǣֻҪlʸڽٵĘOlʣȟoՓӵĮa(chn)׺˲r^ʮؓŴη_ĽǹضcLP(gun)ćҎ(gu)λӻӣM@Nጞ˹̹Ч(yng)ɵ‡W(xu)ҺƝ1887l(f)F(xin)l(f)չՓ˸ڹʹwеÓĬF(xin)Ч(yng)PhotoelectriceffectЧ(yng)֞Ӱl(f)늌(do)Ч(yng)͹Ч(yng)

    ǰһNF(xin)l(f)wַQЧ(yng)ɷNF(xin)l(f)w(ni)Q(ni)Ч(yng)Ч(yng)ӵȫģֻǴ󲿷ֱֶڽٱcշoP(gun)늴ŲǹǸlʎ늴ňСa(chn)Ӱh=(1/2)mv^2+I+WʽУ1/2)mv^2ÓwĹӵijك(ni)д@ǽٵڽفfI헿ȥ˹̹̳ɞh=(1/2)mv^2+WhӾͲÓٵı

    һĽa(chn)Ч(yng)СlʣOlʣ0h0=W_(yng)ĘO޲L0=C/0=hc/Wl(f)⏊ʹ䵽wϵĹӵĔ(sh)l(f)ĹӔ(sh)ďȳùЧ(yng)늱늱܌һδWD(zhun)QһŴ˵}_Ȼ͵Ӿ·ȥӛʽԐ˹̹ʽЧ(yng)rʹʽ=Ƴһ+l(f)ӵĄܴ(sh)ʽhf=+Em=hf0Em=(1/2)mv^2hʿ˳(sh)h=6.63×10^-34J·sfӵlǹ(sh)ԭIY(ji)ƳһСf0ǹЧ(yng)l(f)yֵlEmDZӵܣmDZl(f)ӵoֹ|(zh)vDZl(f)ӵٶӵhfڹ(sh)գͲ(sh)ЕrW(bio)ӛ@ʽc^첻r]ӻӄСA(y)ڣϵy(tng)]ȫЧijЩ׃ɟܻݗʧȥˡ˹̹ɹ˹Ч(yng)@1921ZؐW(xu)

    |W(xu)

    |W(xu)о໥|w֮g׃εһTW(xu)Ɲ1882l(f)P(gun)ڽ|W(xu)¡P(gun)ڏԹwĽ|(Onthecontactofelasticsolids)ƝM@оijǞΌ(do)²ϹW(xu)|(zh)ĸ׃˰l(f)չՓƝһһR^쵽@ϵy(tng)γ˙EAεţDh(hun)Դˌ^ƝO(sh)?q)RʩӵĉҲEAֲS(j)ֲӋ˲?q)µRλƲţDh(hun)Դٺ͌^쌦ԙzՓ_Ɲĵ˽|(yng)ͷd|wʰ돽Լģ֮gP(gun)ϵƝķоƣĦԼκн|w֮g໥õĻ

    Ɲ|ՓҪȱcǛ]п]ɂ|w֮gĽY(ji)@һ}1971K.L.JohnsonK.KendallA.D.RobertsQJKR|ՓJKRՓ]˲ϵıЧ(yng)ڱܵĴ໥|Ĺw֮gMһY(ji)(j)ƽԭõһ|(yng)ֲ|wʰ돽ģԼϱ֮gP(gun)ϵJKRģ(dng)ܞrȻ^ɵƝƌ(do)JKRģ͵ǰ֮һJɂ|w໥þl(f)ڽ|돽֮(ni)CòͬļO(sh)õͬĽY(ji)Փ1975B.V.Derjaguin,V.M.MullerandY.P.Toporov˼O(sh)|w֮g໥ÿ԰l(f)ڽ|돽֮(j)˼O(sh)^DMTģԇD]Y(ji)Ӱ(j)JKRDMTģͣĵͬģpull-off)x_ɂ|wҪ,@һͬĽY(ji)ܶࠎՓMullerָJKRDMTģ͸иđ(yng)÷JKRģ͌w߱͏ģIJ^áDMTģ̈́t෴

    ɺƝ_(chung)Թ_ʼSƵĽ|W(xu)Փ漰|wĸNƌW(xu)овȱٵĹ֮һ˺Ɲڽ|W(xu)I(lng)ؕI(yng)ԓ늴ŌW(xu)I(lng)ܳijɾͶҕ

    1892꣬Ɲ\Ⱦf{ѿ[(l(f)r(jng)vҵ^ʹ)ԇȥί@N1894Ɲڵ‡x36qOhlsdorfhĪq̫ĹƝɯu2027Ɲԭɯu2027W̓Ṵ̊Ⱥͬ?sh)٠󲢛]иļ1930ϣӺ̓ŮҲĵ‡ᵽӢ1960꣬頖˹_u2027˹°Lˬ?sh)٠u2027ƝԃP(gun)Hڲ֮һP(gun)ϣu2027Ɲĕ(j)頖˹_ĕָƝăŮ]нY(ji)]κκᡣ

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