In that crazy time, my mood went up and down like an elevator.

在那个疯狂的时期，我的情绪就像电梯一样起起落落。

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It means, when you are accelerating upwards, as the elevator picks up speed, the reading on the spring will be more and you will feel heavy.

这意味着，当你向上加速时，当电梯加速时，弹簧上的读数会更大，你会感到沉重。

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If we could power such an elevator with solar energy, we could simply rise up into space for a fraction of the cost of a trip by rocket or shuttle.

如果我们能利用太阳能为这样的电梯提供动力，我们只需花费乘坐火箭或航天飞机旅行费用的一小部分就能进入太空。

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After gathering all that information together they create a slide-show, a write-up, a stock template and quick elevator pitch of the company.

FORBES: Quant / Value Stocks From My Class at Ross

He's rigged up a catapult to his mini-fridge, a tiny elevator to carry the beers activate a doll with a remote control - and voila, a beer-tossing machine.

NPR: Four Years of College Yield a Beer Catapult

There are four famously-lengthy lines (tickets, security, elevator up, elevator down) but there are just as many ways to avoid them.

BBC: At 80, the Empire State Building strikes back