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動画の字幕をクリックしてすぐ単語の意味を調べられます!
単語帳読み込み中…
字幕の修正報告
Curious how good your eyesight is? Take a look at this image.
Who do you see?
If you're at a normal viewing distance from the screen and have decent eyesight,
you should be seeing Albert Einstein.
However, if you see Marilyn Monroe, you may want to consider wearing glasses or contacts.
Wear your glasses right now. Try taking them off and the image may change.
Or if you're near somebody else, ask them what they see.
The effect can actually be seen by anyone if we change the distance or size of the picture.
If it's far away, you're more likely to see Marilyn Monroe, as our eyes only pick up the broader strokes of an image from a distance.
But as you come closer to the image, you see the finer details of Einstein.
We promise we haven't changed anything digitally.
In fact, pause this video now, and try walking away from your computer screen.
Chances are the image will change and at a different distance than your friends because our eyes are all slightly different.
The further away you can stand and still see Einstein, the better your eyes likely are.
You can achieve the same effect by squinting your eyes to blur the photo.
So what's going on? Well this image is an example of a hybrid image, whereby a low spatial frequency of one picture is combined with the high spatial frequency of another.
But depending on how well you're able to focus or pick up contrast, your eye will only pick out certain details.
Up close, we're generally able to see fine details like Einstein's mustache and wrinkles.
But as the distance increases, or if your vision is poor and creates a more blurred image in the first place,
Your ability to pick up details fades away.
Instead, you only see the general features like the shape of the mouth, nose and hair, making it seem like Marilyn Monroe.
Love tricking your brain with illusions?
We put together a playlist of our favorite ones that you can watch by clicking the screen.
Don't forget to follow us on Facebook, Instagram and Twitter and subscribe for more weekly science videos.
コツ:単語をクリックしてすぐ意味を調べられます!

読み込み中…

How Good Is Your Eyesight? (TEST)

11161 タグ追加 保存
Lily Chou 2015 年 5 月 16 日 に公開
お勧め動画
  1. 1. クリック一つで単語を検索

    右側のスプリクトの単語をクリックするだけで即座に意味が検索できます。

  2. 2. リピート機能

    クリックするだけで同じフレーズを何回もリピート可能!

  3. 3. ショートカット

    キーボードショートカットを使うことによって勉強の効率を上げることが出来ます。

  4. 4. 字幕の表示/非表示

    日・英のボタンをクリックすることで自由に字幕のオンオフを切り替えられます。

  5. 5. 動画をブログ等でシェア

    コードを貼り付けてVoiceTubeの動画再生プレーヤーをブログ等でシェアすることが出来ます!

  6. 6. 全画面再生

    左側の矢印をクリックすることで全画面で再生できるようになります。

  1. クイズ付き動画

    リスニングクイズに挑戦!

  1. クリックしてメモを表示

  1. UrbanDictionary 俚語字典整合查詢。一般字典查詢不到你滿意的解譯,不妨使用「俚語字典」,或許會讓你有滿意的答案喔