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Oleg Shpyrko
Works at UCSD, Physics
Attended Harvard University
Lives in La Jolla, CA
696 followers|2,142,965 views
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Spooky :)

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nom nom nom nom nom....
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sunset, view from my house
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round and round we go
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I'm getting dizzzzzzzyyyyyyy!

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Monkey Gymnastics, San Diego Zoo
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butterfly exhibit , San Diego Safari Park
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first taste
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sunrise view from Berkeley National Lab
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binary fluid mixture dynamics
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8 comments
 
coffee has a lot of microscopic particles and they don't settle - unless its a turkish style coffee. It's a good question of when a molecule should be considered a particle, like a protein, for example, but for coffee the particles are definitely in >1 nm range and not settling over time - coffee doesn't become clear over time, neither does milk or cream.

I think coffee ring effect should happen whenever there is a rapidly evaporating liquid front with pinned line - so it should happen at the top of the cup too if evaporation is fast enough. I do get a line when I drink espresso but it may be floating particles too, who knows.

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Orangutan and her baby at San Diego Zoo
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Have him in circles
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Work
Employment
  • UCSD, Physics
    Faculty, 2007 - present
  • Harvard University
    Ph.D., 2004
  • Argonne National Laboratory
    Postdoctoral Fellow, 2004 - 2007
Places
Map of the places this user has livedMap of the places this user has livedMap of the places this user has lived
Currently
La Jolla, CA
Previously
- Boston - Chicago - San Diego - Kiev, Ukraine - Moscow, Russia
Story
Introduction
I am a faculty at Physics Department at UC San Diego, where my group carries out nano-science research using x-ray scattering and scanning probes. (for more details visit oleg.ucsd.edu)

Education
  • Harvard University
  • Moscow Institute of Physics and Technology
Basic Information
Gender
Male
Relationship
Married
Other names
Олег Шпырко (Cyrillic russian), Олег Шпирко (Cyrillic ukrainian)