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It was invented by Lyman C. Craig and Otto W. Post. [1] A Craig tube consists of two parts. The first is a stout-walled test tube with a working volume of about 1-5 ml (say, 7-8 cm in length and 1-1.5 cm in diameter). There is a constriction towards the open end of the tube.
The Cragie tube or Craigie tube is a method used in microbiology [1] [2] for determining bacterial motility. Technique.
Lyman C. Craig (born 1906 in Palmyra Township, Warren County, Iowa; died 1974) was a chemical researcher who worked at The Rockefeller Institute for Medical Research from 1933 onward. [1] In 1944 he published a seminal work on countercurrent distribution , which became an important separation technique. [ 2 ]
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The equation is derived for capillary flow in a cylindrical tube in the absence of a gravitational field, but is sufficiently accurate in many cases when the capillary force is still significantly greater than the gravitational force. In his paper from 1921 Washburn applies Poiseuille's Law for fluid motion in a
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The diffusivity of the chain through the tube may then be written as D tube = k B T μ tube. By then recalling that in 1-dimension the mean squared displacement due to Brownian motion is given by s(t) 2 = 2D tube t, we obtain s(t) 2 = 2k B T μ tube t. The time necessary for a polymer chain to displace the length of its original tube is then t ...
Daniel Craig has officially jumped into the Oscar race.. The James Bond actor, 56, on Tuesday brought his new film "Queer" to the 2024 Venice Film Festival, and according to The Hollywood Reporter ...