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2) CSUN science professor Dean Skorlin tests acidity with litmus paper for Melissa Lopez, left, and Sandra Berenice Diaz.
These chips would be a high-tech litmus paper to signal the presence of specific molecules plus their properties and concentration.
Piero Brunello examines the functions of open-air seats in childhood, youth, adult life, and old age, while the anthropologist Franco La Cecla, who argues that benches are the litmus paper of a country's democracy and tolerance, notes the tendency of big American and European cities to `extinguish' public benches:
To test pH, you can get a digital meter for about $50, or you can get litmus paper or a dropper kit like the ones used for pools.
The precise PSI can be determined by comparison of the sensor film to a color calibration chart, much like Litmus paper, or by using one of several imaging systems that SPI supplies.
THERE'S no bit of litmus paper that turns blue for gay, yellow for straight and green for bi.
It's basically as simple as using litmus paper to see if a solution is acidic or basic by observing whether the paper changes color.
The moisture indicator also contains a moisture indicator strip with a rectangular configuration and is constructed from litmus paper.
Just like litmus paper, anthocyanins change color depending on how acidic or basic their environment is.
Shining his little torch into the headphone socket, Jed, this one particular Genius, was insistent that my device had "almost certainly" been for a swim based on the fact the teeny tiny little bit of litmus paper hidden inside the casing had changed colour.
To check the acid, farmers can utilize a blue litmus paper and put it on the seed.
What colour would litmus paper turn if you rubbed it on damp washing powder?