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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
These days, I'm thinking and animating about messages that we cannot read. Uncracked codes, if you will.
Apparently this topic's in the air, what with the release of the Imitation Game this month.
That film's about Alan Turing and cryptanalysis of those German Enigma machines during WWII.
I said cryptanalysis and not cryptography, a word you may know better,
because cryptography is about sending a message securely by changing it, often changing it so it looks meaningless.
This is obviously useful when there's a way for the receiver to change it back and see the original message.
Cryptanalysis, on the other hand, works out ways to understand and break those systems,
to understand how the message is being changed by this system
so that you, unintended recipient with your prying eyes, can read the original message.
But this is all my brother's field. I should grab him and you two can talk about it sometime.
It's all separate from decipherment, which is an attempt to recover messages in an unknown writing system.
Cryptanalysis works with texts that were meant to elude you.
Decipherment works with messages that were once plainly readable,
but aren't any more thanks to accidents of history.
So, as you'll see in next Friday's video, which contains both, hidden codes often use characters we recognize to hide a secret message,
undeciphered scripts have characters we can't even read or identify
that stand between us and a not-so-secret (or, not intentionally secret) message.
Of course, there is that pesky Voynich manuscript, which may be both!
With all this in mind, you've got a bit of background to appreciate next week's video.
I'd like to welcome all new subscribers, you're making it so much fun to talk about language here.
Big smiles for all of you! And let me know in the comments if you're interested in continuing this topic
with a short series that looks deeper at the decipherment of writing systems like Egyptian and Mayan.
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…

Secret Codes - Cryptography, Decipherment and the Imitation Game

7549 タグ追加 保存
Blair Chang 2015 年 3 月 8 日 に公開
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  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