Dark Energy

For Astronomy lovers who would love to discuss about celestial objects.
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mubtasim123
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Dark Energy

Unread post by mubtasim123 » Wed Dec 15, 2010 4:08 am

:D :shock: I heard lot of about dark energy. It says they don't know what or how they work and they couldn't detect one. So how they know they exist and in a book i have read it says dark energy accelerates galaxy to expand farther from one to another. How did they came up with the idea? :roll: :geek:
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rakeen
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Re: Dark Energy

Unread post by rakeen » Wed Dec 15, 2010 1:28 pm

It's just a perception. Dark energy is that kind of energy which we don't know! I mean,DE is that energy, except the energy that we know(kinetic,gravitational force etc). Scientists have no info about this thing. Many scientists have said that this is the most important thing in the universe. But scientists have come up this far that, in the outer space there happens some phenomenon caused by energy. But these energy is not known to scientists. So they call it DE
r@k€€/|/

tanvirab
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Re: Dark Energy

Unread post by tanvirab » Wed Dec 15, 2010 1:57 pm

এইটা আধুনিক পদার্থবিজ্ঞানের অন্যতম বড় সমস্যা।

মহাবিশ্বের বিভিন্ন জিনিসের গতিবিধি পর্যবেক্ষণ কইরা বিজ্ঞানীরা সিদ্ধান্ত নিসে যে বর্তমানে আমরা যেই পরিমাণ পদার্থ এবং শক্তি দেখতে পাই তারচেয়ে অনেক বেশি পরিমাণ পদার্থ এবং শক্তি না থাকলে এইরকম গতিবিধি হইতে পারত না। এই রহস্যজনক বাড়তি পদার্থ এবং শক্তির নাম হইল অন্ধকার পদার্থ এবং অন্ধকার শক্তি। এইটা এখন পর্যন্ত কেউ খুইজা পায নাই; কিন্তু যেইরকম বললাম, অন্যান্য জিনিসের গতিবিধির উপর এদের প্রভাব দেইখা আমরা জানতেসি যে এরা আছে (ব্ল্যাক হোলের মত; সেইটাকেও দেখা যায় না, কিন্তু আশেপাশের জিনিসকে আকর্ষণ করে বইলা আমরা জানি যে এইটা আছে)।

AntiviruShahriar
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Re: Dark Energy

Unread post by AntiviruShahriar » Wed Dec 15, 2010 2:11 pm

আচ্ছা ভাইয়া ছায়াপথ গুলা যে দূরে সরে যাচ্ছে, মাঝকানে কি বাডতেছে????????????

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mubtasim123
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Re: Dark Energy

Unread post by mubtasim123 » Thu Dec 16, 2010 2:37 am

Thanks for the information. They were really helpful. But isn't there any other possible way that cause acceleration other than a unknown energy. Oh wait that's a unknown energy too.. :lol: I saw a image it says 3d map of dark energy how they mapped it without knowing any information about it? :?: Is that about the space (as we see) a unknown energy might be there that causes acceleration or any different method?

The link for the image is http://strangepaths.com/wp-content/uplo ... hubble.png
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leonardo shawon
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Re: Dark Energy

Unread post by leonardo shawon » Sat Jan 15, 2011 11:03 pm

NASA gave some explanation..
follow > science.nasa.gov/astrophysics/focus-areas/what-is-dark-energy/
Ibtehaz Shawon
BRAC University.

long way to go .....

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mubtasim123
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Re: Dark Energy

Unread post by mubtasim123 » Sat Jan 15, 2011 11:07 pm

cool! thanks
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