Physics: Ugunduzi wa gravitation waves, je italeta mapinduzi gani zaidi katika sayansi

[Mark.J]

Ndege kupaa inahitaji hewa. Hewa hii inaprovide upward thrust ku-overcome gravity ili kwenda juu kwa kutumia zile bernoullis principles. Kwa hiyo tunaweza kusema gravitation inahusika kwenye mahesabu ya weight ambayo hata ndege wa angani anatumia. Kwenye vacuum ndege haiwezi kuruka kwa principle inayotumia sasa. Rocket huwa inabeba fuel ambayo inaieject kwa spid kubwa kupata thrust, kama 3rd law of motion inavyosema. Kwa hiyo rocket haihitaji atmosphere ili kuruka. Kwa hiyo hata baada ya kutoka nje ya mvuto wa dunia inauwezo wa kuendelea na safari as long as fuel ipo. Mahesabu ya huko kwingine ni kucheza na gravity zaidi.

 

[The hammer]

Physics doesn't change, sema physics theories do get proved by experimentalists waliosoma applied physics (which by the way is not necessarily the case, just likely) .

Unavosema pure physics nyingine zinaendelea kuzaliwa nadhani tunapishana lugha kidogo. Pure physics haizaliwi, pure physics ipo tayari. Sema labda kama unaongelea theories mpya, of course theory mpya zitaendelea kuja kadri tunavozidi kugundua vitu vingine vipya, siku zote maswali hua hayaishi, na majibu ya maswali tuliyonayo sasa hivi pia yatabasabisha maswali mengine zaidi yazaliwe pale tutakapotaka kugundua nini kiko beyond point flani tutakayokua tumefikia.

Mfano wa vitu ambavyo sasa hivi vipo still in theory na vinatafutiwa proof na experimentalists include:

Dark matter - hakuna aliyeshawahi kudetect dark matter wala kuiona kwa chombo chochote kile, lakini kwa calculations effect zake zinaonekana, ndio maana bado ni hypothetical.

Dark energy - Hii inasemekana ndio inaplay big part ku-accelerate universe expansion maana hadi sasa hivi universe bado inaexpand, baada ya miaka kama 10^100 hivi kama kuna binadamu mzima atakua akitoka nje haoni chochote kwa kua galaxies zinazidi kuachana assuming kuna mtu mzima coz hata jua litakua lishazima by then, hakuna aliyeshawahi kudetect dark matter pia lakini by calculations effect zake zinaonekana.

Tachyon - Hii ni hypothetical particle ambayo inasemakana inaweza kwenda zaidi ya speed ya mwanga, by theory chochote kinachoweza kwenda zaidi ya speed ya mwanga kitakua kinaenda back in time, sasa hakuna aliyewahi kudetect tachyon kusema imetokea future inapita kwenda past, coz hata hiyo property yenyewe ni a guess kutoka kwenye calculations. Tungekua tunajua prooperty nyingine mfano tachyons zinaweza react na what kinds of objects tungeweza kuzidetect.

List inaendelea ndefu sana, kwa leo naishia hapo

Kuna vitu vigeni umeviingiza hapa,kwa manufaa ya wengine ukiwa na muda unaweza kuvielezea hasa hiyo Dark energy,Dark matter na Tachyon,seems to be very interesting to know.

Mara kadhaa ninapitia youtube kuangalia wanavyoitumia physics hasa mambo ya anga,NASA na vyombo vya Kirusu kama Soyuz aircraft japo lots of it is beyond my knowledge but nafurahia kuziangalia so nafikiri hata hizo zako ni nzuri sana.

 

[The Monk]

Mkuu si ndo maana kunakuwa na experiments kwa ajili ya proves panakuwa na mkanganyiko basi theory inaboreshwa au inatengenezwa nyingine.

Nimekuelewa mkuu, tatizo lipo hapo kwenye kuamini na kujua/kufaham. Mimi msimamo wangu unabaki palepale kwamba wengi wetu tunaamini tu ila hatujui.

 

[simplemind]

Sijaelewa hata moja naona kizunguzungu tu...

Usipate taabu. Kuelewa gravity waves kunahitaji advanced mathematics. Good news Newtonian mechanics inatosha kuelewa asilimia 98 ya mwendo wa sayari.

 

[The Monk]

Kuna gravitational force na weight of the objects, ni vitu viwili tofauti, kuna kesi maalum weight inakua sawa na gravitational force,

Kwahiyo mkubwa, kwenye zoezi zima la ndege kupaa/kelea gravitational force haihusiki? Unaweza kunisaidia kidogo hasa pale uliposema uzito wa ndege ni negligible? Shukrani.

 

[MSEZA MKULU]

Habari wakuu,

Jana kama sikosei,wanasayansi walitangaza mapinduzi makubwa ya kugundua alichokisema Albert Einstein miaka mia moja iliyopita kuhusu kupata/kuwa na uwezo wa kuipima gravitation waves hasa zinazotokana na black holes au nyota zinazokaribia kufa kama sijakosea.

Kama tunavyojua ugunduzi wa gravitation force ilivyolete mapinduzi hasa katika flying object kama ndege n.k

Sasa je,hii gravitation waves inaweza kuja na lipi maana naona hili limepokewa kwa furaha sana kwa wanasayansi wengi duniani kwa kusoma comments zao.

Wanafizikia faida yake itakuwa ni nini hasa?

wanasema hii ikitu ilikuwa predictable, lakini matokeo yake bado ni unpredictable, tutegemee kupata fact kubwakubwa ambazo zitaprove wrong theory nyingi za zamani.
ila sijaelewa wanasema kwamba these waves are theoretically proven.
maana friquency yake ni ndogo sana inayoleta ugumu kuipima ukiwa duniani.

mojawapo ni kuwa tunaweza kusikia hata sauti ya dunia inavyozinguka

 

[mankachara]

Kwa hiyo ndege inavyopaa hausishi gravitational force.?

samahani nikuulize suali hili, je weight na gravitational force ni sawa? Au ni katika mazingira gani weight inakua sawa na gravitational force

 

[giraffe]

Weight is a pull of grvit y on abody

 

[Shebbydo]

Hua narudia mara kwa mara kwamba elimu yetu ni ya kuamini kile tunachoambiwa na wataalamu.
Kikibadilika leo tunabadili kile tunachojifunza na tunachokifahamu, au tulichowahi kujifunza.

Kwa mfano leo hii kunawezatokea mtaalam mmoja akasema maji yanachemka katika nyuzi 150 badala ya nyuzi 100. Itabidi tukubali tu. Hivyo basi uelewa na elimu yetu vinategemea sana kuamini vile tunavyoambiwa kadri ya maendeleo ya ugunduzi wa wataalam.

Sayansi siyo static ni dynamic kwa sababu gani nasema hivyo, haimaanishi leo unakifahamu katika physical science ndo hicho hicho ukweli wake milele. Ndo maana watu wanaendelea kufanya research na experiment mbalimbali. Wakati Dalton anaielezea atom kutokana na experiment zake alisema ni smallest indivisible particle which can neither be created nor destroyed lakini leo watu wanaitawanya atom mpaka kwenye nucleus. Hivyo ugunduzi bado unaendelea.

 

[Myahudi Jr II]

Huu ugunduzi utazidi kuiweka universe wazi, kwa kuistadi dark matter kwa urahisi. Maana katika hizi giants light or electromagnetic waves haziwezi kuescape kutokana na kuwa na g kubwa mno. mwanga husaidia optical telescopes katika uchunguzi wa distant objects, hata kama kama mwanga ungekuwa unaescape usingeweza kutuletea taarifa sahihi kutokana na multiple gravitational lensing effects pale utakapopita jirani na heavy masses. Matumizi ya radio telescopes yalishindikana for the same effects. Kwa hiyo kwa kugundua hizi g_waves kutakuza understanding of nature na kugundulika kwa technolojia mbalimbali in our spacetime. Labda wanasayansi wataweza kutengeneza time machine, na kuilezea kwa ufasaha wormholes za Sir Einstein (RIP), ambazo ni milango ya kusafiri kutoka universe moja kwenda nyingine. Time machine ni interesting, hutumiwa sana kwenye science fiction movies za holywood....ambayo ikitengezwa kama alivyo suggest Einstein itaongeza ugunduzi...Kwa time machine unaweza utembelea past yako au future yako....ni kama vile hadithi lakini Einstein aliona they are real things....the power of imagination is the source of knowledge and discovery.....

umenikumbusha move inaitwa LUCY na pia ikanifanya niwaelewe kote

 

[Myahudi Jr II]

physics..physics....physics... nilikupenda sana japo ulikataa kunipenda na ni ww tu, bora akili ya kiswahili na englishi ingejumlishwa pamoja ikawa wewe.

 

[Myahudi Jr II]

What Is a Black Hole?

An artist's drawing a black hole named Cygnus X-1. It formed when a large star caved in. This black hole pulls matter from blue star beside it.
Credits: NASA/CXC/M.Weiss


An artist's drawing shows the current view of the Milky Way galaxy. Scientific evidence shows that in the middle of the Milky Way is a supermassive black hole.
Credits: NASA/JPL-Caltech


This image of the center of the Milky Way galaxy was taken by the Chandra X-ray Observatory.
Credits: NASA/CXC/MIT/F.K. Baganoff et al.


Sagittarius A* is the black hole at the center of the Milky Way galaxy.
Credits: X-ray: NASA/UMass/D.Wang et al., IR: NASA/STScI

This article is part of the NASA Knows! (Grades K-4) series.


A black hole is a place in space where gravity pulls so much that even light can not get out. The gravity is so strong because matter has been squeezed into a tiny space. This can happen when a star is dying.

Because no light can get out, people can't see black holes. They are invisible. Space telescopes with special tools can help find black holes. The special tools can see how stars that are very close to black holes act differently than other stars.


How Big Are Black Holes?
Black holes can be big or small. Scientists think the smallest black holes are as small as just one atom. These black holes are very tiny but have the mass of a large mountain. Mass is the amount of matter, or "stuff," in an object.

Another kind of black hole is called "stellar." Its mass can be up to 20 times more than the mass of the sun. There may be many, many stellar mass black holes in Earth's galaxy. Earth's galaxy is called the Milky Way.

The largest black holes are called "supermassive." These black holes have masses that are more than 1 million suns together. Scientists have found proof that every large galaxy contains a supermassive black hole at its center. The supermassive black hole at the center of the Milky Way galaxy is called Sagittarius A. It has a mass equal to about 4 million suns and would fit inside a very large ball that could hold a few million Earths.


How Do Black Holes Form?
Scientists think the smallest black holes formed when the universe began.

Stellar black holes are made when the center of a very big star falls in upon itself, or collapses. When this happens, it causes a supernova. A supernova is an exploding star that blasts part of the star into space.

Scientists think supermassive black holes were made at the same time as the galaxy they are in.


If Black Holes Are "Black," How Do Scientists Know They Are There?
A black hole can not be seen because strong gravity pulls all of the light into the middle of the black hole. But scientists can see how the strong gravity affects the stars and gas around the black hole. Scientists can study stars to find out if they are flying around, or orbiting, a black hole.

When a black hole and a star are close together, high-energy light is made. This kind of light can not be seen with human eyes. Scientists use satellites and telescopes in space to see the high-energy light.


Could a Black Hole Destroy Earth?
Black holes do not go around in space eating stars, moons and planets. Earth will not fall into a black hole because no black hole is close enough to the solar system for Earth to do that.



Even if a black hole the same mass as the sun were to take the place of the sun, Earth still would not fall in. The black hole would have the same gravity as the sun. Earth and the other planets would orbit the black hole as they orbit the sun now.

The sun will never turn into a black hole. The sun is not a big enough star to make a black hole.

 

[The Monk]

Sayansi siyo static ni dynamic kwa sababu gani nasema hivyo, haimaanishi leo unakifahamu katika physical science ndo hicho hicho ukweli wake milele. Ndo maana watu wanaendelea kufanya research na experiment mbalimbali. Wakati Dalton anaielezea atom kutokana na experiment zake alisema ni smallest indivisible particle which can neither be created nor destroyed lakini leo watu wanaitawanya atom mpaka kwenye nucleus. Hivyo ugunduzi bado unaendelea.

Safi sana mkuu, kwanza maelezo yako yana tone ya mwana scholar hongera.
Hivyo basi, ni sahihi kusema kwamba vitu tunavyojifunza na kuvielewa sio uhalisia au ukweli wenyewe ila ni kwa kiwango cha tafiti za wataalam kwa wakati huo?

Kwa mfano, anaweza kutokea mwana sayansi leo akaleta vigezo vyake na matokeo ya tafiti zake zinazoonyesha kwamba dunia ni pembe tatu, endapo vigezo na madai yake yatapitiwa na baadhi ja majopo yenye kuheshimika na kuonekana ana mantiki inamaana tutabadili nadharia ya dunia kua duara.

Ikumbukwe kwamba sipingani kabisa na sayansi, isipokua hapo kwenye kufahamu na kuamini. Sisi tuliowengi tunaamini tu ila hatufahamu.

Shukrani

 

[Arduino Sentinel]

Kama tujuavyo back in1915 Sir Einstein alitoa General theory of relativity kwamba space is nothing but wraps/ meander/ curves/ kwenye space time fabric na kukinzana na theory za hapo kabla yakua space is just nothing that carries somethings na akaenda further na theory ya kua, kama space yaweza ku wrap,then inaweza kucreate vibrations/ripples ambapo izi ripples sasa ndo 'gravitational waves' ,,Hawkings' Big bang theory ikatumia this Einstein's idea kuexplain the beginning of our very own universe.Ambapo Hawkings theory ikaprove kua you can't go to a time before Bib Bang sababu kulikua hakuna time before Big Bang, ambapo this supported the Einstein's theory kua time ni Dimension its self.Back to Gravitational waves,LIGO team wamedetect kwa kutumia 'Interference pattern' ambazo wmezi observe jinsi zinavoshift by the cause of gravitational.
This means alot,bringing Sir Einstein's idea to life opens a new portal ya great discovery,for along time tumekua tunaobserve the universe through waves of light ambapo this is a pain in the ass since it takes a very long time, Imagine how much we shall archive by observing the universe using waves of gravity,of course i cant even stop visualizing crazy ideas za wormholes,traveling from one parallel universe to another, and alot more,,Actually huwa na refer kuwa some stuffs in Fictional Science are Just Invisible Science that in one way or another they might be brought to life,kama ambavyo Einstein alifanya,it always start with crazy logical ideas.

 

[thesym]

samahani nikuulize suali hili, je weight na gravitational force ni sawa? Au ni katika mazingira gani weight inakua sawa na gravitational force

Mr c sawa ila kutokana na movement ya ndege ambayo ni kupata lift F=ma a ni accerelation due to gravity ambato ni 10 sasa naomba uniambie ni kivipi gravity haina mahusiano na ndege.

 

[fungi]

wanasema hii ikitu ilikuwa predictable, lakini matokeo yake bado ni unpredictable, tutegemee kupata fact kubwakubwa ambazo zitaprove wrong theory nyingi za zamani.
ila sijaelewa wanasema kwamba these waves are theoretically proven.
maana friquency yake ni ndogo sana inayoleta ugumu kuipima ukiwa duniani.

mojawapo ni kuwa tunaweza kusikia hata sauti ya dunia inavyozinguka

Dah good thing ni frequency ya sauti inayotoka pale dunia inapozunguka haipo ndani ya udibility range ya binadamu Mana ilo sauti lingekua linaboa sana

 

[MSEZA MKULU]

Dah good thing ni frequency ya sauti inayotoka pale dunia inapozunguka haipo ndani ya udibility range ya binadamu Mana ilo sauti lingekua linaboa sana

hahaa lakini wanaweza kudesign low frequency amplifiers ili tusikie sauti za maulimwengu yanavyozunguka. watu wanaweza pata pressure wasisikia muungurumo wa dinia kuzunguka

 

[mpenda pombe]

Uzi mtamu sana huu...
Nimejifunza mengi..

 

[geometry]

hahaa lakini wanaweza kudesign low frequency amplifiers ili tusikie sauti za maulimwengu yanavyozunguka. watu wanaweza pata pressure wasisikia muungurumo wa dinia kuzunguka

Sijakuelewa vizuri mkuu
Hiyo sauti ni kubwa sana?

 

[MSEZA MKULU]

Sijakuelewa vizuri mkuu
Hiyo sauti ni kubwa sana?

Sauti ni ndogo kiasi kwmba haiwezi kusikia kwa sikio LA kiumbe. Sasa ukiwa na low frequency amplifier
Unaweza kusikia