Bayyane radiation

Wata ila ka ji game da musamman electromagnetic taguwar ruwa gane da mutum ido, mamaye wani yanki na bakan da ciwon zango na 380 nm (ga Violet) zuwa 780 nm (for ja). Wannan shi ne bayyane radiation. Properties shi ne kullum aka nuna a cikin terahertz, za mu iya gano ta aunawa da mita amsa irin wannan taguwar ruwa (mun samu rata a cikin 400-790 THz). Bayyane radiation kuma ana kiranta a bayyane haske. Don sa shi mafi kawai, shi ne hasken da abin da muka kasance haka saba wa, da kuma jiki gefe na wanda ba ma tunani. A mafi m nuna alama na idanunmu zuwa 555 nm (wannan kore ɓangare na bakan, 540 THz).

Ban sha'awa gaskiya: a bakan ba ya dauke da wasu daga cikin launuka gane ta mu. Alal misali, akwai wani ruwan hoda launi (da tabarau). An kafa a lokacin da hadawa da wasu launuka.

Shin ka taba yin mamaki me ya sa sama ya dubi blue? Yana da sauki ne: ɓangare na bakan da wani gajeren zango da aka warwatsa ta iska fiye da tsawon m ga ja gefe na bakan. Saboda wannan sama ne blue, musamman zawãli. Bayyane radiation shiga cikin abin da ake kira "Tantancewar taga". Wannan yankin na bakan cikin yanayin duniya ba sha.

Wasu dabbobi iya ganin haske, m ga mutum hangen nesa (da shi kawai shi ne ba a bayyane kewayon lamba). Mutane da yawa kwari (misali, ƙudan zuma) gane da ultraviolet da iyaka, don haka suna da sauri a sami Nectar a furanni. Ultraviolet radiation ne iya ganin da tsuntsãye. Wasu jinsunan tsuntsaye ko da suna da tasirin da suke da bayyane ne kawai a cikin nau'i na radiation, a cikin abin da namiji da mace daidai ƙayyade juna.

Yana sami yin amfani da bayyane haske da a cikin mutane. Its fi na kowa tsari - zafi dangane da motsi na atoms: da ya fi girma jiki ne mai tsanani, da sauri da motsi na atoms wanda emit haske a kan karo. All saba mana haske kafofin - rãnã, Lagwani, kyandir (wutar) - suna thermal kafofin na bayyane haske.

Wadannan misali - electroluminescence. A nan, makamashi da sa haske watsi, atoms samu daga nonthermal kafofin. Lokacin da wutar lantarki jini a wani gas filin ruwaito a wasu sanadin motsi makamashi, da electrons buge da kwayoyin halitta (da kalmar "yi karo"), da kuma samar da makamashi na m atoms mu kiyaye riga a cikin nau'i na luminescence (electroluminescence).

Electroluminescence yanzu yi amfani da shi don talla hasken ãyõyi. Af, da Aurora borealis ma yana nufin bayyanar electroluminescence: caje barbashi jefarwa da Sun, suna janyo hankalin da Magnetic filin na wannan duniya tamu, ba mu da m at zura masa sandunansa, da kuma haske. Amma cathode ray shambura a talabijin haske saboda cathodoluminescence: haske a nan Yanã electron bombardment.

Chemiluminescence - wani misali, a bayyane haske. Ga sakamakon da haske zama da makamashi sake a sinadaran halayen. haske Madogararsa zafin jiki ne mai zafin jiki na matsakaici a cikin abin da aka located. An misali iya da kyau ya zama wani firefly tare da kadan glowing kore "tocila". Haske da sauran kwayoyin: wasu kifi, kwayoyin da kuma kwari. Wani lokaci za ka iya ganin haske na Rotting itatuwa.

Wasu daga cikin jiki fara haske bayan da aka fallasa zuwa haske: mamaye makamashi, suna da kansu zama kafofin haske. Yana - photoluminescence kaddarorin wadda ake amfani da ko'ina a paints, tufafi, hanya ãyõyi da sauransu.

A launi gyara na gani hasken da ake amfani a yi na tunani: Green ne da aka sani zuwa soothe ja - murna, da shunayya, baki da shudi - a kan m, hana kuma ko da zãlunce su, kuma tare da kasawa da farin launi a cikin mutane da kuma ciki ba faruwa. Bayyane radiation da ake amfani a magani (chromotherapy): misali, rawaya haske da ake amfani da magani daga wasu ido cututtuka. Red haske warke wasu cututtuka da kuma Pathology na jima'i gland: infantilism, rashin haihuwa, hailar cuta a cikin mata, kasa yawa na iri a cikin maza anaphrodisia. Blue haske gusar itching, bi da exudative diathesis da kuma daban-daban iri zub da jini.