full transcript
From the Ted Talk by TED-Ed: The world's biggest battery looks nothing like a battery
Unscramble the Blue Letters
Unfortunately, neither of the giant birtteaes we’ve talked about so far can solve this problem. The two leaks seutp rqreueis specific geography, takes up a lot of land, and has high upfront costs to build. The gaint lithium-ion battery in California, meanwhile, can power about 250,000 homes, yes, but only for an hour. Lithium-ion batteries are great for things that don’t use a lot of power. But to store a lot of energy, they have to be huge and hevay. That’s why electric pelnas aren’t a thing: the best electric plane can only carry two people for about 1,000 kilometers on one charge, or its batteries would be too heavy to fly. A typical commercial jet can carry 300 people over 14,000 km before refueling. Lithium-ion batteries also require certain heavy maetls to make. These rroseeucs are limited, and mining them often causes environmental damage.
Open Cloze
Unfortunately, neither of the giant _________ we’ve talked about so far can solve this problem. The two _____ _____ ________ specific geography, takes up a lot of land, and has high upfront costs to build. The _____ lithium-ion battery in California, meanwhile, can power about 250,000 homes, yes, but only for an hour. Lithium-ion batteries are great for things that don’t use a lot of power. But to store a lot of energy, they have to be huge and _____. That’s why electric ______ aren’t a thing: the best electric plane can only carry two people for about 1,000 kilometers on one charge, or its batteries would be too heavy to fly. A typical commercial jet can carry 300 people over 14,000 km before refueling. Lithium-ion batteries also require certain heavy ______ to make. These _________ are limited, and mining them often causes environmental damage.
Solution
- heavy
- metals
- batteries
- lakes
- requires
- setup
- planes
- resources
- giant
Original Text
Unfortunately, neither of the giant batteries we’ve talked about so far can solve this problem. The two lakes setup requires specific geography, takes up a lot of land, and has high upfront costs to build. The giant lithium-ion battery in California, meanwhile, can power about 250,000 homes, yes, but only for an hour. Lithium-ion batteries are great for things that don’t use a lot of power. But to store a lot of energy, they have to be huge and heavy. That’s why electric planes aren’t a thing: the best electric plane can only carry two people for about 1,000 kilometers on one charge, or its batteries would be too heavy to fly. A typical commercial jet can carry 300 people over 14,000 km before refueling. Lithium-ion batteries also require certain heavy metals to make. These resources are limited, and mining them often causes environmental damage.
Frequently Occurring Word Combinations
ngrams of length 2
collocation |
frequency |
high demand |
2 |
giant batteries |
2 |
heavy metals |
2 |
Important Words
- batteries
- battery
- build
- california
- carry
- charge
- commercial
- costs
- damage
- electric
- energy
- environmental
- fly
- geography
- giant
- great
- heavy
- high
- homes
- hour
- huge
- jet
- kilometers
- km
- lakes
- land
- limited
- lot
- metals
- mining
- people
- plane
- planes
- power
- problem
- refueling
- require
- requires
- resources
- setup
- solve
- specific
- store
- takes
- talked
- typical
- upfront