full transcript
From the Ted Talk by TED-Ed: The material that could change the world ... for a third time
Unscramble the Blue Letters
Other innovators are tkinireng with the ftunnmdaael chemistry of concrete. Some are investigating ways to reduce emissions by diceresang the cement in concrete. Still others have been wirokng to unoevcr and replicate the secrets of Roman concrete. They found that Pliny’s remark is literally true. The Romans used volcanic ash in their cement. When the ash interacted with seawater, the seawater strengthened it— making their concrete stronger and more long-lasting than any we use today. By adding these findings to an arsenal of modern innovations, hopefully we can replicate their success— both by making long lasting structures, and ennusirg our descendants can amdrie them thousands of years from now.
Open Cloze
Other innovators are _________ with the ___________ chemistry of concrete. Some are investigating ways to reduce emissions by __________ the cement in concrete. Still others have been _______ to _______ and replicate the secrets of Roman concrete. They found that Pliny’s remark is literally true. The Romans used volcanic ash in their cement. When the ash interacted with seawater, the seawater strengthened it— making their concrete stronger and more long-lasting than any we use today. By adding these findings to an arsenal of modern innovations, hopefully we can replicate their success— both by making long lasting structures, and ________ our descendants can ______ them thousands of years from now.
Solution
- working
- ensuring
- admire
- decreasing
- tinkering
- fundamental
- uncover
Original Text
Other innovators are tinkering with the fundamental chemistry of concrete. Some are investigating ways to reduce emissions by decreasing the cement in concrete. Still others have been working to uncover and replicate the secrets of Roman concrete. They found that Pliny’s remark is literally true. The Romans used volcanic ash in their cement. When the ash interacted with seawater, the seawater strengthened it— making their concrete stronger and more long-lasting than any we use today. By adding these findings to an arsenal of modern innovations, hopefully we can replicate their success— both by making long lasting structures, and ensuring our descendants can admire them thousands of years from now.
Frequently Occurring Word Combinations
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collocation |
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greenhouse gas |
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gas emissions |
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carbon dioxide |
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ngrams of length 3
collocation |
frequency |
greenhouse gas emissions |
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Important Words
- adding
- admire
- arsenal
- ash
- cement
- chemistry
- concrete
- decreasing
- descendants
- emissions
- ensuring
- findings
- fundamental
- innovations
- innovators
- interacted
- investigating
- lasting
- literally
- long
- making
- modern
- reduce
- remark
- replicate
- roman
- romans
- seawater
- secrets
- strengthened
- stronger
- structures
- thousands
- tinkering
- today
- true
- uncover
- volcanic
- ways
- working
- years