- Thread starter
-
- #81
hoja nzuri sana eti zinapitaje anga nyingine pasipo ruksa? wakizitungua je?
rocket ndio nini au ambazo hua zinapita huku zinaacha moshi angani je hua zinapita vipi kwenye anga za mataifa mbalimbali bila ruksa na mbona sijawahi kuona milipuko yoyote
mkuu una maanisha angani kuna viwanja vya ndege? uongo mkavu
Google itakupa mwongozo wapi utapata maelezo kwa upana zaidi tena na facts. Sio kila simple question uje kuuliza JF na kama unataka hapa iwe sehemu ya umbeya au utukuyu hiyo ni juu yako
Hapana zinaenda juani kutua
rocket ndio nini au ambazo hua zinapita huku zinaacha moshi angani je hua zinapita vipi kwenye anga za mataifa mbalimbali bila ruksa na mbona sijawahi kuona milipuko yoyote
hoja nzuri sana eti zinapitaje anga nyingine pasipo ruksa? wakizitungua je?
Sasa wale wanaoendaga international space station (ISS) na kukaa huko miezi kadhaa wanarudije? Kumbuka kuwa kule pia huwa inatua, process yake inaitwa docking..., Hao watu hutumia hiyo spacecraft kurudi duniani. Mfanon ni hawa walioenda juzi ISS kwa kutumia rocket inayoitwa Soyuz (ikiongozwa na Muingireza Tim Peake). Ni lazima watatumia Soyuz kurudi..., je hutua kinyume nyume?
Au wale walioenda Moon walituaje? maana walitumia rocket ile ile (Apollo) ambayo haikutua mwezini (sababu wangekosa machine ya kurushia rocket). Hivyo ilibaki kwenye anga la mwezi mpaka walipomaliza utafiti, wakati inarudi duniani walitua kwa process iitwayo docking.
Hata wale walioenda mwezini (Moon landing), walirudi na rocket ile ile (Apollo series). Haikutua mwezini kwa sababu wangekosa mashine ya kuwarusha..., hivyo iliendelea kubaki kwenye anga la mwezi mpaka walipomaliza utafiti wao na kudandia. Hapa dunia ilitua kwa process inayoitwa docking..., Je docking ni nini?
Ni hayo tu
hatari sana.
Muingereza aliongoza Soyuzi?
Soyuzi zote zinaendeshwa na Warusi.
na hakuna safari ya kwenda ISS ambayo dereva si Mrusi.
Na huyo aliyeendesha juzi kwa uzoefu wa kuendesha Soyuz ni wa saba.
Huyo Muingereza ndio mtu wa kwanza wa Uingereza kwenda ISS. alikuwa nakodoa tu macho na kila kitu kwake kilikuaa kipya.
Hilo ni Gari likwa limebeba NASA likiipeleka kwenye kituo chake cha kurukia. Ukweli ni kwamba kuna magari special ya kuibeba roketi hizo pindi zinapo rudi toka anga za juu
Unaongelea nini? Unaelewa kirefu cha NASA na maana yake? Kwa nini shirika unalilinganisha na Soyuz (roketi ya Warusi)? Hiyo kwenye picha ni Space Shuttle na zote zimeishaacha kufanya kazi na kwa sasa Wamarekani hawana roketi ya kupekeka watu anga za juu na wanadandia za Warusi kwenda kwenye Space Station.
Niliwahi kushuhudia shuttle Discovery ikiruka pale Cape Canaveral Florida. Ni tukio la aina yake na niliheshimu uwezo wa binadamu na sayansi kwa ujumla!
Wakuu,
Tunatambua kuwa ndege aina ya roketi hukaa katika vinu vya kurukia zikiwa zimetazama kuelekea juu, vichwa vikiwa juu na anapochomoka kwenda anga za mbali huondoka kwa staili hiyo, sasa hizo roketi zinarudije katika vinu au stesheni zao? Kwa sababu ikirudi inabidi ikae vilevile kama mwanzo, yaani inakua wima kichwa kinanyanyuka kwa juu kama awali.
Swali: sasa inarudije kwenye kinu mpaka ikae wima vile au inarudi kinyume nyume kama gari?
Hua zinauwanja wake special kwenye surface ya jua zinatua huko
Mkuu tafuta muvi inaitwa armageddon ya bruce wills na ben afleck utaona kila kitu kuhusu hayo mambo.....
[h=1]Soma hapa chini:
What Is a Rocket?[/h]
NASA's Saturn V rocket carried humans to the moon.
Credits: NASA
Robert Goddard built the first liquid-fuel rocket.
Credits: NASA
The Falcon 9 rocket carries supplies to the space station.
Credits: NASA
This article is part of the NASA Knows! (Grades K-4) series.
The word "rocket" can mean different things. Most people think of a tall, thin, round vehicle. They think of a rocket that launches into space. "Rocket" can mean a type of engine. The word also can mean a vehicle that uses that engine.
How Does a Rocket Engine Work?
Like most engines, rockets burn fuel. Most rocket engines turn the fuel into hot gas. The engine pushes the gas out its back. The gas makes the rocket move forward.
A rocket is different from a jet engine. A jet engine needs air to work. A rocket engine doesn't need air. It carries with it everything it needs. A rocket engine works in space, where there is no air.
There are two main types of rocket engines. Some rockets use liquid fuel. The main engines on the space shuttle orbiter use liquid fuel. The Russian Soyuz uses liquid fuels. Other rockets use solid fuels. On the side of the space shuttle are two white solid rocket boosters. They use solid fuels. Fireworks and model rockets also fly using solid fuels.
Why Does a Rocket Work?
In space, an engine has nothing to push against. So how do rockets move there? Rockets work by a scientific rule called Newton's third law of motion. English scientist Sir Isaac Newton listed three Laws of Motion. He did this more than 300 years ago. His third law says that for every action, there is an equal and opposite reaction. The rocket pushes on its exhaust. The exhaust pushes the rocket, too. The rocket pushes the exhaust backward. The exhaust makes the rocket move forward.
This rule can be seen on Earth. Imagine a person standing on a skateboard. Imagine that person throwing a bowling ball. The ball will go forward. The person on the skateboard will move, too. The person will move backward. Because the person is heavier, the bowling ball will move farther.
When Were Rockets Invented?
The first rockets we know about were used in China in the 1200s. These solid rockets were used for fireworks. Armies also used them in wars. In the next 700 years, people made bigger and better solid rockets. Many of these were used for wars too. In 1969, the United States launched the first men to land on the moon using a Saturn V rocket.
How Does NASA Use Rockets?
Early NASA missions used rockets built by the military. Alan Shepard was the first American in space. He flew on the U.S. Army's Redstone rocket. John Glenn was the first American in orbit. He flew on an Atlas rocket. NASA's Gemini missions used the Titan II rocket. The first rockets NASA built to launch astronauts were the Saturn I, the Saturn IB and the Saturn V. These rockets were used for the Apollo missions. The Apollo missions sent men to the moon. A Saturn V also launched the Skylab space station. The space shuttle uses rocket engines.
NASA uses rockets to launch satellites. It also uses rockets to send probes to other worlds. These rockets include the Atlas V, the Delta II, the Pegasus and Taurus. NASA uses smaller "sounding rockets" for scientific research. These rockets go up and come back down. They do not fly into orbit.
How Will NASA Use Rockets in the Future?
New rockets are being developed today. They will launch astronauts on future missions.
The new rockets will not look like the space shuttle. These rockets will look more like earlier ones. They will be tall and round and thin. These rockets will take astronauts into space. They will take supplies to the International Space Station. NASA also is working on a powerful new rocket called a heavy lift vehicle. This rocket will be able to take big loads into space.
Together, these new rockets will make it possible to explore other worlds. Someday they may send humans to Mars.
Read What Is a Rocket? (Grades 5-8)
Return to NASA Knows! (Grades K-4)
Return to Students K-4
David Hitt/NASA Educational Technology Services
Last Updated: Sept. 8, 2015
Editor: Sandra May
rocket ndio nini au ambazo hua zinapita huku zinaacha moshi angani je hua zinapita vipi kwenye anga za mataifa mbalimbali bila ruksa na mbona sijawahi kuona milipuko yoyote
Mkuu ile unayoina ikipita juu sana bila muungurumo ikiacha mchirizi kama moshi nyuma ni ndege za kawaida kabisa. Zamani tulikuwa tukiziita rocket. Ukweli ni ndege ya kawaida. ule unaona kama moshi C moshi bali ni joto linalotoka kwenye xzost ya ndege na kuyeyusha hewa yenye ubaridi huko angani.
Kutosokia kwako muungurumo wa ndege hii ni kwa sababu ndege inapita mbali sana kiasi ambacho masikio yako yanashindwa kusense.