MAW

Friday, September 8, 2017

9 sep. 2017Fundamentals of physics/The angular momentum of the ice skater is conserved.

The angular momentum of the ice skater is conserved.

The angular momentum of the ice skater is conserved—as she retracts her arms and legs, her moment of inertia decreases, but her angular velocity increases to compensate.

The angular momentum (L) of an object rotating about an axis is the product of its moment of inertia and its angular velocity:

L=I\omega

where

I

is the moment of inertia (resistance to angular acceleration or deceleration, equal to the product of the mass and the square of its perpendicular distance from the axis of rotation);

\omega \

is the angular velocity.

Angular momentum is a conser
ved quantity—an object's angular momentum stays constant unless an external torque acts on it.

9 september 2017 Gravitational lensing

Gravitational lensing is caused by a massive body between a distant object and ourselves. It can create the appearance of two or more objects where there is really only one. The light from the object gets bent round the massive body in between.
The massive body, such as a galaxy or black hole, creates a very strong gravitational field in space. The exact nature of the effect depends on:

relative distance and position between observer, lens and lightsource
size of the lens
mass inside the lens

Einstein

General relativity

G_{\mu \nu }+\Lambda g_{\mu \nu }={8\pi G \over c^{4}}T_{\mu \nu }

Einstein field equations

[show]Important concepts

[show]Phenomena

[show]Equations

[show]Advanced theories

[show]Solutions

[show]Scientists

Albert Einstein predicted the possibility of gravitational lensing. The discovery that our Sun bends the light of distant objects when their light passes close to it was evidence that the general theory of relativity was correct.

Types of lensing

There are three types of lensing:

strong lensing
weak lensing
microlensing

Strong lensing

Strong lensing betrays itself by producing multiple images from the same object. A well-known example is Einstein's Cross (Q2237+0305) at a distance of 8 billion lightyears. Here, the gravitational lens produces four images from the same object (a quasar), although it is only one object. The light of the quasar does not travel in a straight line to earth. Instead, it is bent along the gravitational field of a galaxy in front of it. This galaxy is at a distance of 400 million lightyears.
The first discovery of this kind (except the Sun) happened in 1979. Two quasars were close to each other. They both had the same spectrum and proved to be two images of the same quasar (Q0957+651). In 1980 scientists found out which group of galaxies functioned as the lens.

Weak lensing

Distortions.

Weak lensing does not produce multiple images of the same object. Instead it produces a highly deformed or stretched image from an object far beyond the lens. In 1986 this was discovered in cluster Abell 370. Later it was understood that this was a greatly deformed image of a galaxy far beyond the cluster.
The object can appear larger or smaller, as is shown in the table. Weak lenses allow us to observe very distant galaxies, which we would be unable to observe without such lens. By bending the light, the amount of light (magnitude) from the source increases. This way a very distant and faint galaxy can become visible, while we normally would not be able to observe it.

Microlensing

In cases of microlensing, there is no distortion in shape. However, the amount of light visible from an object changes periodically. This can be used to detect exoplanets. Light from a distant star is bent and enhanced by the gravitational field of a closer star. The presence of an exo-planet rotating around that closer star bends the light of the star farther away periodically. Object OGLE-2005-BLG-390-Lb, discovered 25 January 2006, is the first exoplanet detected by using microlensing.

Discovering an exoplanet, using light from a distant star.

Wikimedia Commons has media related to: Gravitational lensing

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Thursday, September 7, 2017

We all are guests/ မင္းကြန္းဆရာေတာ္ဘုရားၾကီး

ဧည့္သည္တိုင္း၏ လမ္းခရီး
----------------------------------------------------
လာတုန္းကလည္းတစ္ေယာက္တည္းေနာ္
လက္တြဲေခၚကာ ေဖာ္မပါဘူး
ဥစၥာခ်ည္းနွီး တစ္ကိုယ္တည္း ။

ျပန္သြားေတာ့လည္း တစ္ေယာက္တည္းေနာ္
လက္တြဲေခၚကာ ေဖာ္မပါဘူး
ဥစၥာခ်ည္းနွီး တစ္ကိုယ္တည္း ။

လာျပီးေတာ့နား မသြားေသးခင္
ခ်ိန္ေလးတြင္မွ ဝန္းက်င္ယွက္ႏြယ္
ေနွာင္ ႀကိဳး သြယ္ ခ့ဲ ။

ျပံဳးရယ္ မ့ဲငို ခ်စ္ မုန္း ပို ႀက
မလို ေဒါသ လိုေလာဘနွင့္
ဘဝရိပ္ျမံဳ ကႀကိဳးစံုခ့ဲ
ကံကုန္မိုးခ်ဳပ္ လက္တြျဖဳတ္ခါ
သုတ္သုတ္ေဆာလ်င္ ခရီးနွင္သည္
ဒို႔လ်င္ ဧည့္သည္ပါတကား ။

ငါသည္ပင္မူ
ေခၚသူမရွိ ေရာက္လာမိစဥ္
နွင္သူမရွိ ျပန္ဖို႔ရွိ၏
ငါေနသည့္အိမ္ ငါ၏အိမ္ဟု
ငါ့အိမ္မွာထား ငါ့မယားနွင့္
ငါ့လင္သားနွင့္ ငါ့သားသမီး
ငါ့ ပစၥည္းဟု
ယူသည့္စိတ္စြဲ အမွတ္လြဲခ့ဲ ။

အမွန္မွာမူ
ငါလာေသာအခါ လက္ဗလာတည္း
ျပန္ရပါလ်င္ လက္ခ်ည္းပင္တည္း
ငါ့တြင္ ••• ကိုယ္ပိုင္မရွိပါတကား။

လာသူလည္းလာစမ္းပါေစ
မဆီးေလနွင့္
သြားသူလည္းသြားစမ္းပါေစ
မတားေလနွင့္

တို႔တေတြမွာ သဘာဝလွ်င္ အမိရင္ဝယ္
ထြက္ ဝင္ ခိုနား ခရီးသြားသည့္
#ဧည့္သည္ေတြပါတကား - - - ။

(ေက်းဇူးေတာ္ရွင္မင္းကြန္းဆရာေတာ္ဘုရားႀကီး )

အရွင္ရာဇာနႏၵ
ကန္႔ဘလူသွ်င္ရာဇာ(ကိုးျမိဳ႕)
၆ • ၉ • ၂၀၁၇

2017 Why are people so disappointed in Suu Kyi? Ms Suu Kyi was awarded a Nobel Peace Prize for her work bringing democracy to Burma, but some have called for her Nobel Peace Prize to be taken back.

Aung San Suu Kyi blames 'terrorists' for Rohingya 'misinformation' @CNNI https://t.co/MpGh6OfobS

ေလဒီၾကီးကိုစိတ္ပ်က္ေန ၾကျပီ
Why are people so disappointed in Suu Kyi?
Ms Suu Kyi was awarded a Nobel Peace Prize for her work bringing democracy to Burma, but some have called for her Nobel Peace Prize to be taken back.
While she has previously acknowledged problems in Rakhine state, she has denied there is ethnic cleansing of the Rohingya,
Several fellow laureates have called on her to act in the latest conflict, and the UN's special rapporteur on human rights in Myanmar this week said she must "step in".
Her biographer Justin Wintle said he was "flabbergasted" by Ms Suu Kyi's response - telling the BBC he thought she was "impervious" to international opinion and was now "in the army's pocket".

Aung San Suu Kyi blames 'terrorists' for Rohingya 'misinformation'

Nobel laureate Aung San Suu Kyi has made her first public comments on the fate of her country's persecuted Rohingya minority since new violence broke out almost two weeks…

cnn.com

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8 You, Kyaw Htin, Khin Khin Toee and 5 others

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Hla Myint ေလဒီၾကီးကိုစိတ္ပ်က္ေနၾကျပီ
အခ်ိ ု႕သူမ်ားးက နိ ုဘယ္ဆုကို ျပန္ယုတ္သိမ္းရန္ေတာင္းဆိုေန ၾကျပီ
ေလဒီ အထုပၸ တိၲ ေရးသားသူ Justin Wintle
ကေလဒီၾကီးသည္ စစ္တပ္ အိပ္ေထာင္ထဲ ေရာက္ေန
ျပီထင္ေၾကာင္းေျပာဆိုပါတယ္

Why are people so disappointed in Suu Kyi?
Ms Suu Kyi was awarded a Nobel Peace Prize for her work bringing democracy to Burma, but some have called for her Nobel Peace Prize to be taken back.
While she has previously acknowledged problems in Rakhine state, she has denied there is ethnic cleansing of the Rohingya,
Several fellow laureates have called on her to act in the latest conflict, and the UN's special rapporteur on human rights in Myanmar this week said she must "step in".
Her biographer Justin Wintle said he was "flabbergasted" by Ms Suu Kyi's response - telling the BBC he thought she was "impervious" to international opinion and was now "in the army's pocket".

Glossary
flabbergasted
flabbergast
ˈflabəɡɑːst/Submit
verb informal

past tense: flabbergasted; past participle: flabbergasted
surprise (someone) greatly; astonish.
"this news has left me totally flabbergasted"
synonyms: astonish, astound, amaze, surprise, startle, shock, take aback, take by surprise; More

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· Reply · 11 hrs · Edited

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Hla Myint Aung San Suu Kyi blames 'terrorists' for Rohingya 'misinformation' @CNNI https://t.co/MpGh6OfobS

Aung San Suu Kyi blames 'terrorists' for Rohingya 'misinformation'

Nobel laureate Aung San Suu Kyi has made her first public…

cnn.com

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· Reply · Remove Preview · 11 hrs

Manage

John Pohl With 'Terrorists' she means her dear Tatmadaw rapist friends, I suppose?

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· Reply · 5 hrs

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Hla Myint replied · 1 Reply

Thin Thin Swe ျမန္မာျပည္မွာေတာ့ အဲ႔လိုဟုတ္ေပါင္
၃နဲ႔၄လို ေက်ာခ်င္းကပ္ေနရတဲ႔အျဖစ္။

Monday, September 4, 2017

Umin Han ရခုိင္ျပည္နယ္မွာ ၂ႏွစ္ေနခဲ႔တာမုိ႔ အန္တိေမာ္ ရ႔ဲ ခံစားမႈေတြကုိ အျပည္႔အ၀နားလည္မိပါတယ္။

Hla Myint shared a photo to ကိုေဇာ္ ေမျမဳိ့'s Timeline.

ရခိုင္ ေသြး 100% ပါ ပါတယ္တဲ႕
သူ႕ dna အစစ္ခံ ရဲ တယ္တဲ႕
ဘူးသီး ေတာင္ေမာင္းေတာ သြားပီး
လဝက ေတြ ရဲေတြ "ကယ္တင္ရွင္
ဗ မာ့တပ္မေတာ္သားေတြ"
က် ူး ဘင္ဂလီ ေတြ (ဘိုက္ၾကီးသယ္ေတြ နိ ု႕ စို႕ ကေလးေတြ ပါ)
သြားသတ္မလို႔ တဲ႕
သူ႕မီးဖိုေဂ်ာင္ထဲက ထင္းခုတ္တဲ႕ ဓါး ျမိ ေနေအာင္ေသြးေနေလရဲ႕
သူ မွတ္ပံုတင္ သူ႕ တူက ေဖ်ာက္ျပစ္တာအသစ္ထုတ္ေပးဘို႔ ေရွာက္ထားတာ ႏွစ္ ၂၀ ေလာက္ ၾကာပီ ခုထိ မရေသးလို ႕မေၾက နပ္ေနတာဗ်
သူအမ်ိ ုးေတြရိွ တဲ႕ " စိုက္ေထြ " သြားခ်င္ေနတာ
မႏၲေလး ခ်မ္း ေအးသာစံ လဝက ျမိ ု႕နယ္မွူးက အန္တီကအသားနဲနဲ ညိုေတာ့ ဘင္ဂလီ / ရိုဟင္ဂ်ာ ေသြးပါတယ္ ထင္ပီး ေခါက္ထားလို႕ ေဒါခီးေနတာဗ်
ရုန္းရင္းဆန္ခတ္ေတြ မႏၲေလးကူးလာရင္
လဝကမွ ူးသြား ခုတ္မလို႕ တဲ႕ ဗ်
ဒါးကျမိေနတာဘဲ
စိတ္မထင္ရင္ အနီးအနားကလူလဲ ခုတ္ခ်င္ခုတ္မွာဗ်
က်ြန္ေတာ္လဲ ဗမာဆိုေတာ့ လန္႔တာေပါ့ဗ်ာ
ေၾကာက္လို႕ လဘက္ေရဆိုင္ ေရွာင္ေရွာင္ ေန ရတယ္ဗ်
အရပ္ထဲ က အေၾကာင္းမသိတဲ႕လူေတြ က က်ြန္ေတာ္ လဘက္ေရ သိတ္ၾကိ ုက္တယ္ထင္ ေနၾကတာဗ်
ဗမာေတြကလူ လိမ္ေတြသူခိုးေတြလို႕
ခဏ ခဏ ေျပာတယ္ဗ်
သူတို႕ ရခိုင္ ဘုရားကို ခိုးထားတာတဲ႕ဗ်
မႏၲ ေလး ကမဟာ ျမတ္မုနိ ဘုရားၾကီး ရခိုင္ ေျပ "စိုက္ေထြ " ျပန္ပို႕ ခ်င္ေနတာဗ်
က်ြန္ေတာ္လဲ မၾကားခ်င္ဟန္ေဆာင္ေနရတာေပါ့ဗ်ာ
— with Ko Win and 7 others.

nyeinchansarpay.blogspot.com

Published by Hla Myint · 13 hrs ·

Hla Myint

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10 You, Shwe Zin, Seesein Shin and 7 others

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Umin Han ရခုိင္ျပည္နယ္မွာ ၂ႏွစ္ေနခဲ႔တာမုိ႔ အန္တိေမာ္ ရ႔ဲ ခံစားမႈေတြကုိ အျပည္႔အ၀နားလည္မိပါတယ္။

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Saturday, September 2, 2017

nyeinchansarpay.blogspot.com shared Sakhunna Ung's post.

Published by Hla Myint · 1 hr ·

Terrorists ?
Bengalis or Rakhines or AA or IS or dictators who create reign of terror ?
Those who create & promote fear for
political power, religious or raciial reasons are TERRORISTS.

Image may contain: one or more people and people standing

Image may contain: one or more people, people sitting and indoor

Sakhunna Ung added 7 new photos — with Sakhunna Ung and 2 others.

10 hrs ·

"ကဲ....ျကည့္ျကပါဦး"
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ဒီေလာက္ ငယ္ရြယ္ နုနယ္ျပီး ရန္ညွိဳးမရွိ အဆိပ္အေတာက္မရွိတဲ႕ အသက္ ၂၅ န...
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Hla Myint http://nyeinchansarpay.blogspot.com shared Sakhunna Ung's post. Bengalis or Rakhines who create & promote fear for political power are TERRORISTS.

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