Similarity | similarity คือ

by Nguyen Giang
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นอกจากการดูบทความนี้แล้ว คุณยังสามารถดูข้อมูลที่เป็นประโยชน์อื่นๆ อีกมากมายที่เราให้ไว้ที่นี่: ดูความรู้เพิ่มเติมที่นี่

AAA Similarity
Two geometrical objects are called similar if they both have the same shape. More precisely, one is congruent to the result of a uniform scaling (enlarging or shrinking) of the other. Corresponding sides of similar polygons are in proportion, and corresponding angles of similar polygons have the same measure. One can be obtained from the other by uniformly \”stretching\” the same amount on all directions, possibly with additional rotation and reflection, i.e., both have the same shape, or one has the same shape as the mirror image of the other. For example, all circles are similar to each other, all squares are similar to each other, and all equilateral triangles are similar to each other. On the other hand, ellipses are not all similar to each other, nor are hyperbolas all similar to each other. If two angles of a triangle have measures equal to the measures of two angles of another triangle, then the triangles are similar.
This article assumes that a scaling, enlargement or stretch can have a scale factor of 1, so that all congruent shapes are also similar, but some school text books specifically exclude congruent triangles from their definition of similar triangles by insisting that the sizes must be different to qualify as similar.
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DNA vs RNA (Updated)

Why is RNA just as cool as DNA? Join the Amoeba Sisters as they compare and contrast RNA with DNA and learn why DNA should be sharing the limelight! Video has updated handout here and is updated from the old version of this video:
Table of Contents:
00:00 Intro
0:54 Similarities of DNA and RNA
1:35 Contrasting DNA and RNA
2:22 DNA Base Pairing
2:40 RNA Base Pairing
2:57 mRNA, rRNA, and tRNA
4:06 Quick Quiz!
Factual Reference:
OpenStax Biology 2nd Edition, Biology 2e. OpenStax CNX. Aug 19, 2019
Further Reading Suggestions
Why did we say DNA is \”generally\” double stranded and RNA is \”generally\” singlestranded? Check out these fascinating exceptions!
What do we mean when we encouraged exploring the chirality of DNAand other important characteristicsthat our cartoons cannot show well? Check out
RNA World Hypothesis? Here is a great resource from NOVA to learn more:

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The Amoeba Sisters videos demystify science with humor and relevance. The videos center on Pinky’s certification and experience in teaching biology at the high school level. Learn more about our videos here:
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DNA vs RNA (Updated)

Similarity \u0026 Dissimilarity | Introduction to Data Mining part 17

In this Data Mining Fundamentals tutorial, we introduce you to similarity and dissimilarity. Similarity is a numerical measure of how alike two data objects are, and dissimilarity is a numerical measure of how different two data objects are. We also discuss similarity and dissimilarity for single attributes.

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Similarity \u0026 Dissimilarity | Introduction to Data Mining part 17

Where did English come from? – Claire Bowern

View full lesson:
When we talk about ‘English’, we often think of it as a single language. But what do the dialects spoken in dozens of countries around the world have in common with each other, or with the writings of Chaucer? Claire Bowern traces the language from the present day back to its ancient roots, showing how English has evolved through generations of speakers.
Lesson by Claire Bowern, animation by Patrick Smith.

Where did English come from? - Claire Bowern

So Many Colors, So Many Shapes | Diversity Song | The Singing Walrus

Hi everyone!
We are excited to present \”So Many Colors, So Many Shapes\”. It’s a song that teaches kids that people come in different colors and shapes, yet share the same hearts!
The whole Singing Walrus family, including the three little cows from previous videos years ago, appear in this big, happy, and groovy performance on a huge floating stage.
As they sing and float around the world, they meet lots of new friends friends of all colours, sizes, and shapes.
As usual, we kept the lyrics simple and repetitive so that it’s even singable for little ones. Teachers and parents can use this song for lessons on topics such as diversity, body, or traveling.
We see so many creative lesson plans and art projects developed by passionate educators. We hope this song will be a worthy musical contribution!
Here are the lyrics of \”So Many Colors, So Many Shapes\”:
Verse 1
In this big, big world
There is only one me
I like all my colours
Of my eyes, of my hair, of my skin
In this big, big world
There is only one you
I like all your colours
Of your eyes, of your hair, of your skin

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So many colours (kids repeat)
So many shapes (kids repeat)
We all look different (kids repeat)
But our hearts are all the same
So many colours (kids repeat)
So many shapes (kids repeat)
We all look different (kids repeat)
So come on everybody, let’s celebrate

Verse 2
In this big, big world
There is only one me
I like all my shapes
Everything from my head to my feet
In this big, big world
There is only one you
I like all your shapes
Everything from your head to your feet 
Verse 3
In this big, big world
We are one family
Everywhere I go
People sing, people dance, just like me! 
In this big, big world
We are one family 
Everywhere we go
We can share, we can play, we can sing
The Singing Walrus creates fun teaching materials, such as kids songs, educational games, nursery rhymes, and kindergarten worksheets (e.g. handwriting worksheets) for parents and teachers. Come and join our community on Facebook, or subscribe to our Youtube Channel!
All illustration, animation, music, and voice work produced by The Singing Walrus, with Yiorgos Hagilaris on piano and organ

So Many Colors, So Many Shapes | Diversity Song | The Singing Walrus

นอกจากการดูหัวข้อนี้แล้ว คุณยังสามารถเข้าถึงบทวิจารณ์ดีๆ อื่นๆ อีกมากมายได้ที่นี่: ดูวิธีอื่นๆInvestement

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