buoyancy / boost
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buoyancy
The physical force that acts upward on an immersed body in a liquid or gas and makes it seem lighter.
Dank des Auftriebs im Salzwasser kann man sich mühelos treiben lassen.
Thanks to the buoyancy in salt water, you can float effortlessly.
boost
A positive impulse or encouragement that leads to greater success, motivation, or economic growth.
Die guten Quartalszahlen gaben der gesamten Branche neuen Auftrieb.
The good quarterly figures gave the entire industry a new boost.
'Auftrieb' (buoyancy/boost) is a noun derived from the verb 'auftreiben' (to drive upward), which means 'to make something move upward.' This basic idea of 'coming upward' explains both the physical force and the motivating impulse.
Ein Heißluftballon steigt durch den Auftrieb der warmen Luft.
A hot-air balloon rises because of the buoyancy of the warm air.
You can easily distinguish the meanings from context. In texts about physics, swimming, or flying, the physical force is meant. In contexts such as business, politics, sports, or psychology, it refers to the positive, motivating impulse.
Der Auftrieb eines Schiffes hängt von seiner Form ab.
The buoyancy of a ship depends on its shape.
In the figurative meaning, 'Auftrieb' (boost) is often used with certain verbs. Typical phrases are 'Auftrieb geben' (to give a boost), 'Auftrieb bekommen' (to get a boost), 'Auftrieb erhalten' (to receive a boost), or 'für Auftrieb sorgen' (to create momentum).
Die positive Rückmeldung der Kunden gab dem jungen Unternehmen Auftrieb.
The positive feedback from customers gave the young company a boost.
drive
Both words can be associated with motivation and improved performance. Antrieb refers more to the inner or triggering force that makes someone act; Auftrieb refers more to the encouragement or lift that gives someone new strength afterward. Antrieb fits the reason for an action, while Auftrieb fits positive encouragement.
Die gute Prüfungsnote gab ihr neuen Auftrieb für die nächste Prüfung.
The good grade on the exam gave her a new boost for the next exam.
Ihr Antrieb war der Wunsch, die Prüfung aus eigener Kraft zu bestehen.
Her drive was the desire to pass the exam through her own efforts.
