They were concerned that the Supreme Court would require a test of some kind that could limit what can be patented.

VOA: special.2010.07.16

Years of worry that the same rockets that could take people to the moon could also bring nuclear war to Earth.

VOA: special.2009.08.16

So far,their findings have included pieces of a brick that could be from building materials used in colonial times.

VOA: special.2009.08.17

They found that running shoes create more stress that could damage knees, hips and ankle joints than running barefoot.

VOA: special.2010.02.03

He wanted to make an instrument that could play a note longer than notes played on a traditional acoustic guitar.

VOA: special.2009.09.27

The students use the mixture to fertilize the soil instead of buying chemical fertilizers that could harm the environment.

VOA: special.2009.04.14

He promised to spend his remaining years in search of designs that could make human existence on Earth easier.

VOA: special.2010.05.30

But one possibility, he says,is that it may take time away from sports or other activities that could help prevent depression.

VOA: special.2009.03.10

The Treasury Department would buy the silver with new paper money that could be exchanged for silver or gold.

VOA: special.2010.06.17

And robotic submarines are being used to try to stop the leak -- a process that could take weeks.

VOA: special.2010.05.01

Supporters of slavery wanted to organize a constitutional convention that could put Kansas into the Union as a slave state.

VOA: special.2009.05.21

They also must provide detailed information about nearby water and environmental issues that could cause wildlife to gather near an airport.

VOA: special.2009.04.01

They searched for germplasms that could keep plants from weakening and wilting during hot, dry summers in the United States.

VOA: special.2009.01.20

Soon,people began to use the word hedging to describe steps that could be taken to protect against financial loss.

VOA: special.2010.01.31