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Videos tagged with roman (26)

Infochemicals in the Ocean

Infochemicals in the Ocean

Civil and Environmental Engineering

Added 4 years ago | 00:00:45 | 12777 views

Marine microbes — though invisible to the naked eye — perform functions that are vital for the health of the ocean. With no vision or hearing, they navigate their environment by following chemical signals. One of these chemicals, DMSP, e...

Energy-Efficient Salps

Energy-Efficient Salps

Civil and Environmental Engineering

Added 4 years ago | 00:01:17 | 9704 views

Energy-efficient salps swim and forage. To find out more, read a news release at http://cee.mit.edu/news/releases/2010/salp . Video courtesy of Roman Stocker of the MIT Department of Civil and Environmental Engineering and Kelly Rakow Su...

1.961 - Lecture 1 – The Origin of Diffusion

1.961 - Lecture 1 – The Origin of D...

1.961 Lecture Videos

Added over 6 years ago | 01:24:00 | 33553 views

1.961 Life at low Reynolds numbersIntroduction to the class Brownian motion

1.961 - Lecture 2 – The physics of diffusion

1.961 - Lecture 2 – The physi...

1.961 Lecture Videos

Added over 6 years ago | 01:25:00 | 22277 views

1.961 Life at low Reynolds numbersRandom walkers: a toy model for diffusion The diffusion coefficient and Einstein’s formula

1.961 - Lecture 3 – Diffusion around a sphere

1.961 - Lecture 3 – Diffusion...

1.961 Lecture Videos

Added over 6 years ago | 01:25:00 | 25045 views

1.961 Life at low Reynolds numbersDiffusion-limited uptake: nutrient flux to a sphere When does nutrient uptake occur only by diffusion: The Peclet number Diffusion vs. locomotion: how do you escape from your boundary layer? Diffusion ...

1.961 - Lecture 4 – A smooth world

1.961 - Lecture 4 – A smooth ...

1.961 Lecture Videos

Added over 6 years ago | 01:27:00 | 28747 views

1.961 Life at low Reynolds numbersSolving the diffusion equation A fundamental property of diffusion: rapid smearing of fine-scale heterogeneities

1.961 - Lecture 5 – Examples and applications of diffusion

1.961 - Lecture 5 – Examples ...

1.961 Lecture Videos

Added over 6 years ago | 01:26:00 | 17395 views

1.961 Life at low Reynolds numbersThe capillary assay: testing what microorganisms like Diffusion in a pipe Insect tracheae: limits to respiration Diffusion of momentum: an analogy The porosity of eggs and the gas exchange in leaves (ha...

1.961 - Lecture 6 – Receptors

1.961 - Lecture 6 – Receptors

1.961 Lecture Videos

Added over 6 years ago | 01:25:00 | 16216 views

1.961 Life at low Reynolds numbers Receptors on cell surfaces: how many do you need? Other forms of diffusion Diffusion with drift

1.961 - Lecture 7 – Taylor dispersion

1.961 - Lecture 7 – Taylor di...

1.961 Lecture Videos

Added over 6 years ago | 01:28:00 | 23451 views

1.961 Life at low Reynolds numbersPoiseuille flow The advection-diffusion equation Stretching the mixing zone: enhancing diffusion via shear

1.961 - Lecture 8 – What’s diffusion got to do with swimming microorganisms?

1.961 - Lecture 8 – What̵...

1.961 Lecture Videos

Added over 6 years ago | 01:26:00 | 25339 views

1.961 Life at low Reynolds numbersBrownian rotational diffusion A bacterial random walk: E. coli’s run-and-tumble swimming Other bacterial swimming modes Brownian constraints on swimming The distribution of tumbling angles

1.961 - Lecture 9 – Poisson processes and bacterial diffusion

1.961 - Lecture 9 – Poisson p...

1.961 Lecture Videos

Added over 6 years ago | 01:26:00 | 15475 views

1.961 Life at low Reynolds numbersTumbling intervals: a Poisson processDiffusion of a bacterial populationMotility mutants

1.961 - Lecture 10 – Chemotaxis

1.961 - Lecture 10 – Chemotaxis

1.961 Lecture Videos

Added over 6 years ago | 01:28:00 | 15214 views

1.961 Life at low Reynolds numbersMany taxis: chemo-, photo-, pH-, magneto-, rheo-, geo-, aero-, thermo-, gyro-taxis. A computer model of chemotaxis: a sensing random walker with memory Deriving an advection-diffusion equation for bact...

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