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Making a sound lens

Making a sound lens involves using a balloon filled with a gas denser than air, like carbon dioxide to bend sound waves and focus them, similar to how a glass lens bends light, making sound louder at ...
Plumbers share the biggest risks.
Decode the secret language of iguanas at San Diego Zoo's Anne and Kenneth Griffin Reptile Conservation Center. Trump Cabinet secretaries conspired to violate Constitution, judge says Defense ...
For many astronomy fans, the start of a new year involves checking the calendar, all to discover when the moon will be full and the weeks when marvelous meteor showers are expected to grace our skies.
TV and home video editor Ty Pendlebury joined CNET Australia in 2006, and moved to New York City to be a part of CNET in 2011. He tests, reviews and writes about the latest TVs and audio equipment.
Small apartments and homes offer plenty of charm, but they tend to be lacking when it comes to kitchen space. Luckily, there are tons of small kitchen ideas that maximize storage and efficiency. By ...
"I learned this the hard way when I first moved out." Man reveals simple hack to boost your dishwasher's efficiency: 'Saving ...