I Felt by very few people; barely noticeable. II Felt by a few people, especially on upper floors. III Noticeable indoors, especially on upper floors, but may not be recognized as an earthquake. IV ...

You may wonder, though, what does it mean to have an antenna with 3 dB gain? By the formula, that means the output of the antenna is 3 dB (right around twice) the input. However, it is difficult ...

Our contributor bought a decible reader. The findings—that cars are loud, and that that’s bad for our health—likely won’t ...

And pi keeps the surprises coming—most recently in January 2024, when physicists Arnab Priya Saha and Aninda Sinha of the Indian Institute of Science presented a completely new formula for ...

Brent does his subjective tests in his audio lab, using a mix of cabin noise recorded in four different airliners, fed through eight speakers and a subwoofer at a level of 80 decibels, which is ...

Software like Excel can make this calculation easier. Variance is calculated by using the following formula: You can also use the formula above to calculate the variance in areas other than ...

And if you’re concerned with protecting your hearing health, the app allows you to limit the volume to 85 decibels ... In fact, at the highest intensity, these headphones reduced less noise ...

For example, the analog VGA monitor interface uses a D-sub 15-pin plug and socket. Also called "DB connectors" and "D-subs," they come in 9, 15, 25, 37 and 50 pin varieties. The D-sub designation ...

Most important is its role as a solvent for all the chemical reactions in cells. Light intensity affects the rate of photosynthesis. The light intensity fluctuates during the day, and will also be ...

The interactions between quantum spins underlie some of the universe's most interesting phenomena, such as superconductors ...

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“Day 1’s always tough. Doesn’t matter how hard you train, what you do in the summer, you can’t match that intensity. That’s the biggest adjustment.” This is about figuring out the roste ...