The video owner has disabled playback on external websites.

This video is no longer available on YouTube.

This video cannot be played right now.

Watch on YouTube

KI-gestützte Lerntools freischalten

Registriere dich, um leistungsstarke Tools zu nutzen, die dir helfen, schneller aus jedem Video zu lernen.

Szenen-Erklärer Phrasen-Jäger Karteikarten-Review Nachsprechübung Sprachausgabe
Kostenlos registrieren
B1 Mittelstufe Englisch 5:03 Educational

How do airplanes actually fly? - Raymond Adkins

TED-Ed · 2,277,277 Aufrufe · Hinzugefügt vor 4 Tagen

Lernstatistiken

B1

GER-Niveau

5/10

Schwierigkeit

Untertitel (82 Segmente)

00:07

By 1917, Albert Einstein had explained the relationship between space and time.

00:13

But, that year, he designed a flawed airplane wing.

00:17

His attempt was based on an incomplete theory of flight.

00:20

Indeed, insufficient and inaccurate explanations still circulate today.

00:26

So, where did Einstein go wrong?

00:29

And how do planes fly?

00:32

Though we don’t always think of it this way, air is a fluid medium—

00:36

it’s just less dense than liquids like water.

00:39

Things that are lighter than air are buoyant within it,

00:42

while heavier objects require an upward force, called lift, to stay aloft.

00:48

For planes, this force is mostly generated by the wings.

00:52

One especially pervasive false description of lift

00:55

is the “Longer Path” or “Equal Transit Time” explanation.

00:59

It states that air molecules traveling over the top of a curved wing

01:03

cover a longer distance than those traveling underneath.

01:07

For the air molecules above to reach the wing’s trailing edge

01:11

in the same instance as those that split off and went below,

Vollständige Untertitel im Videoplayer verfügbar

Mit Übungen trainieren

Erstelle Vokabel-, Grammatik- und Verständnisübungen aus diesem Video

Vokabeln & Grammatik Verständnisquiz IELTS-Prüfung Schreib-Übung
Registrieren zum Üben
Noch keine Kommentare. Sei der Erste, der seine Gedanken teilt!

Registriere dich, um alle Features freizuschalten

Verfolge deinen Fortschritt, speichere Vokabeln und übe mit Übungen

Kostenlos Sprachen lernen