In his research paper, Hubble said the issue could be decided only by more powerful instruments.

VOA: special.2009.04.29

Soon after, Hubble began working with a larger and more powerful telescope at Mount Wilson.

VOA: special.2009.04.29

The more powerful culture rarely respects the language and culture of smaller ethnic groups.

VOA: special.2009.12.02

The telescope recently received new equipment and instruments to make it even more powerful.

VOA: special.2009.09.30

If he accepted it, the people would feel that Clay was the more powerful.

VOA: special.2009.01.29

Today's large passenger planes have fewer but more powerful engines than older models.

VOA: special.2009.04.01

However,Adolf Hitler and other fascists continued to grow more powerful.

VOA: special.2011.04.28

The soldiers had more powerful weapons.

VOA: special.2010.04.01

Monday's nuclear test was North Korea's second, and according to seismic readings, may have been more powerful than the first.

VOA: standard.2009.05.26

Now the only signature missing is that of Czech President Vaclav Klaus, who has also expressed concerns about a more powerful EU.

VOA: standard.2009.10.10

"They came with a more powerful weapon - hope.

VOA: standard.2009.10.28

More powerful particle accelerators atom smashers, they used to call them have allowed physicists to learn ever more about the sub-atomic particles that are the basic building blocks of all matter.

VOA: standard.2010.03.05

Rosemary Hollis, who teaches Middle East politics at City University London, says Iranian rhetoric about Britain is rooted in a long-held perception that while the United States might be more powerful, Britain is more devious.

VOA: standard.2009.07.02

More than one thousand people were killed when a powerful earthquake struck western Indonesia at the end of September.

VOA: special.2010.01.12

All that and more is urgently needed after a powerful earthquake wrecked much of Haiti's capital on Tuesday.

VOA: special.2010.01.16

So development must take place,". U.S.officials have also called for more development in Pakistan's poor western regions, but powerful Taliban militant groups and ongoing violence have largely stalled significant projects.

VOA: standard.2009.03.26