-Daylight amahora eMoscow Petersburg

Igama elithi "usuku" inezincazelo ezimbili. Okokuqala - lokhu isikhathi sosuku lapho ukukhanya ngaphandle, kanti eyesibili - ingxenye egqamile ye nsuku zonke inzuzo isikhathi Zomhlaba. Izazi zikholelwa ukuthi ukusebenzisa amahora emini - isikhathi kusukela ekuphumeni kwelanga kuya ekushoneni kwalo.

Ukujikeleza ukutsheka komhlaba esitshekile, ngakho ngokuhamba konyaka, ubude emini. Winter usuku lifushane, nobude ke kuyehluka ne-latitude. Enyakatho, ngosuku ukukhanya ubusika amahora 4-5, kanye nabo bonke abanye isikhathi - ebumnyameni. Kodwa eminye enyakatho ilanga kungenzeki nhlobo - ebusuku polar, kodwa ehlobo ukulala kanye - hhayi ebusuku. Uma ilanga usephendukele ngemuva emkhathizwe, futhi twilight waqala cishe ngokushesha futhi siphelile - ilanga liphuma futhi.

Kodwa kungakhathaliseki ukuthi ziningi kangakanani eyathatha imini amahora, 6 amahora noma 18, ebusuku izothatha isikhathi eside ngokwanele nje ukuthatha usuku nge amahora 24 - ngosuku ikhalenda. Futhi uma ebusuku ngo-June 5:00 kuphela, ngosuku kungaba 19. Kodwa zikhona izikhathi ezithakazelisayo phakathi nonyaka wekhalenda. Ngo 2010 - 2020 iminyaka Lawa 20 March 20-21, Juni 22-23, Septhemba, futhi ngo-December 21-22. Kulezi zinsuku, ngo-March nango-September, imini nobusuku bayalingana emhlabeni. Zibizwa ngokuthi ama - izinsuku kwentwasahlobo ekwindla nelanga. Nakuba, uma acabangele mkhuba kwalungiswa izinkunga zokubona of inhlamvu yelanga futhi ubukhulu bawo (0.5 arcminutes), kuze kuphele isikhathi uhlobo usuku, usebenzisa la imiphumela engokomzimba, liyanezela imizuzu embalwa nje. Ngemva kwamahora angu-emini - isikhathi kusuka ukubukeka onqenqemeni engenhla disk yakhe solar lalingabonakali emkhathizwe ngaphambi Ukuhamba ephansi (maqondana ekuseni) aphume ekhoneni isithela emkhathizwe, futhi kusenzima imizuzu emibili ye-solar disk ukunyakaza. Futhi ku yenkabazwe. Ngo Ezindaweni zethu ke kungenye 3-4 imizuzu noma ngaphezulu. Ngaphezu kwalokho, ngenxa mkhuba kwalungiswa izinkunga zokubona - kwalungiswa izinkunga zokubona ray ukukhanya emkhathini - ilanga iyabonakala kakade, nakuba, ngokusho ukubala yejeyomethri, kusenzima ngezansi emkhathizwe. Kungokufanayo siyenzeka ekushoneni kwelanga.

A Juni 20-21 - ngenjikalanga ehlobo, lapho ilanga liphuma ukuze ukuphakama enkulu, futhi ngosuku ende kunazo zonke. Ezindaweni ezibandayo kobusuku sifushane kakhulu futhi "simhlophe" ngalesi sikhathi, t. E., Ngaphandle ebumnyameni ukuhwalala. Kodwa 21-22 Disemba - usuku emfushane futhi ebusuku yinde kunazo. Futhi ezindaweni ezibandayo nasenyakatho usuku kungenzeka ukuqala. Kodwa ngakolunye uhlangothi lwembulunga, e-Australia, eNingizimu Afrika nase-South America kukhona okuphambene ngqo. Bona Solstice ngoDisemba, futhi ebusuku omude kunayo yonke - ngoJuni.

Biorhythms futhi emini

Nature ingashintshwa eziphilayo izinto eziphilayo ukuze ushintsho isikhathi ukukhanya nobumnyama kosuku. Uma isilwane (futhi abantu) emavikini ambalwa ukugcina ku "amahora angu-12 ngosuku, 12 - ebusuku", bese zenyuka ngokushesha idluliselwe umbuso "18 amahora ukukhanya 6 amahora ebumnyameni," khona-ke baqala sokwephulwa kwe sihlale siphapheme asebenzayo futhi ubuthongo.

Emphakathini wesintu, jet Lag emjikelezweni nsuku kuholela ukucindezeleka, kuze ukuthuthukiswa izifo - ukucindezeleka, ukuqwasha, isifo senhliziyo nemithambo yegazi, futhi ngisho nomdlavuza. Kwakukhona ngisho welithi "ukucindezeleka ngezikhathi ezithile zonyaka" ezihlobene ubude emini lwasebusika.

Ngezinye Ezindaweni ezahlukene - ezahlukene usuku ukukhanya. Moscow, nokuba 55 degrees enyakatho nenkabazwe, has ngosuku ukukhanya amahora 7 ngo-December nango-January kuya ku-17 ngo-June nango-July.

usuku Khanyisa Petersburg futhi kuncike isikhathi sonyaka. Futhi njengoba Petersburg sise degrees 60 enyakatho-latitude, ubude usuku lapha Juni amahora-18.5. Lokhu kudala umphumela White Nights lapho ilanga eshiya kafushane nje. Ngokusemthethweni nobusuku obungamashumi ezimhlophe zokugcina kusukela ngo-May 25 kuya ku-17 Julayi. Kodwa ngo-December nango-January ebumnyameni ebusuku ezinhlanu.