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Balamua Ganja Dhuka Ta || बलमुआ गांजा धुंका ता || Bhojpuri Shiv Bhole Baba Bhajan Songs
 
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अगर आप Bhojpuri Video को पसंद करते हैं तो Plz चैनल को Subscribe करें और पाये ढ़ेर सारे Bhojpuri Video || http://goo.gl/ugHL7v Singer - Amrita Dixit Album - Bum Bum Lahri Artist - Rakesh Ranjan, Chandan Abhisekh, Vishnukant Upadhyay, Kashish, Sapna, Puja Priya Lyrics - Raushan Singh Vishwas, Manoj Mohit, Santosh Kumar Music - Chhotuji, Avinashji Choreographer - Navin Kumar Singh Video Director - Chandan Abhisekh 08651188444 Label - Chanda Cassettes Contact Person - Ankit Vij 09899429419 Leela Krishnaji - 09212183337, Yogeshji ( 08744941024 ) Mail Us - [email protected] Facebook subscribe : https://www.facebook.com/Chanda-Cassette-929164050490684/ follow us on Twitter : https://twitter.com/chandabhojpuri Like us : http://goo.gl/Xz1hcH
Views: 592030 Chanda
How Do We Tell Temperature?
 
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This week Reactions takes a look at the science behind how we tell temperature. There's a lot of chemistry that goes into thermometers. We have a lot of confidence that we measure temperature accurately. But how do thermometers in the kitchen or doctor’s office work? Thanks to the laws of thermodynamics, thermometers respond to heat moving from hot to cold as a means of measuring temperature. Clever physical chemists and engineers have taken temperature tools from the simple, but still useful, lined glass thermometers to digital readouts. And you might be surprised to find out how Einstein took thermometers the distance. Find us on all these places: Subscribe! http://bit.ly/ACSReactions Facebook! http://facebook.com/ACSReactions Twitter! http://twitter.com/ACSReactions Tumblr! http://tumblr.com/ACSReactions JD Pigs Producer: Elaine Seward Writer: Darcy Gentleman, Ph.D. Judith Lavelle Executive Producer: Adam Dylewski Scientific consultants: Dawn Cross Darcy Gentleman, Ph.D. Kyle Nackers Sources: Fever Guidelines https://www.cdc.gov/quarantine/air/reporting-deaths-illness/definitions-symptoms-reportable-illnesses.html http://www.mayoclinic.org/first-aid/first-aid-fever/basics/art-20056685 http://highschoolenergy.acs.org/content/hsef/en/what-is-energy/thermometers.html http://theinventors.org/library/inventors/blthermometer.htm Galileo Project (Rice Univ.) - Thermometer http://galileo.rice.edu/sci/instruments/thermometer.html EPA - Mercury in your thermometer https://www.epa.gov/mercury/mercury-thermometers EPA - Mercury - Health Effects https://www.epa.gov/mercury/health-effects-exposures-mercury NIST - phasing out mercury thermometer calibration https://www.nist.gov/news-events/news/2011/02/end-era-nist-cease-calibrating-mercury-thermometers Galilean Thermometer not so Galilean (interesting, but also corroborates the event of Galileo’s invention of the thermoscope around the start of the 17th century) http://pubs.acs.org/doi/abs/10.1021/ed200793g Bimetallic thermometers http://www.teltru.com/topic.aspx?name=faq thermocouples [deleted content] http://www.msm.cam.ac.uk/utc/thermocouple/pages/ThermocouplesOperatingPrinciples.html thermistors https://www.nist.gov/pml/mercury-thermometer-alternatives-thermistor http://www.radio-electronics.com/info/data/resistor/thermistor/thermistor.php IR semiconductor sensors https://www.noao.edu/meetings/gdw/files/Joyce_IR.pdf IR planet measurement https://geosci.uchicago.edu/~rtp1/papers/PhysTodayRT2011.pdf https://www.acs.org/content/acs/en/climatescience.html “Experiments in Physical Chemistry”, 6th edition. David P. Shoemaker, Carl W. Garland, Joseph W. Nibler. McGraw-Hill, 1996. Chapter 18 “Temperature” and Chapter 19 “Instruments” Ever wonder why dogs sniff each others' butts? Or how Adderall works? Or whether it's OK to pee in the pool? We've got you covered: Reactions a web series about the chemistry that surrounds you every day. Reactions is produced by the American Chemical Society.
Views: 194688 Reactions