Then, in the late 1960s and early 1970s, Vera Rubin, a young astronomer at the Department of Terrestrial Magnetism at the Carnegie Institution of Washington, presented findings based on a new sensitive spectrograph that could measure the velocity curve of edge-on spiral galaxies to a greater degree of accuracy than had ever before been achieved.

Then, dividing the units of energy ( such as eV ) by a fundamental constant that has units of velocity ( M < sup > 0 </ sup > L < sup > 1 </ sup > T < sup >-1 </ sup >), facilitates the required conversion of using energy units to describe momentum.

Then the velocity of B relative to A is given by

Then smoke becomes turbulent as its Reynolds number increases, as its velocity and characteristic length are both increasing.

Then one would find the actual velocity fluctuating about a mean value:

Then, if the body follows a closed orbit in a plane, the angular velocity integrated over a time interval in which the orbit is completed once, is an integer times 360 °.

Then consider a body of mass m, moving in a circle of radius r, with an angular velocity of ω.

Then the object's velocity is multiplied by this approximate light-time to determine its approximate displacement through space during that time.

He calculated the velocity obtained from each formula for a given slope and for hydraulic radius varying from 0. 25 m to 30 m. Then, for each condition, he found the mean value of the seven velocities and developed a formula that best fitted the data.

Then, by taking time derivatives, formulas are derived that relate the velocity of the particle as seen in the two frames, and the acceleration relative to each frame.

Then at time the particle acquires the velocity, as if it underwent an elastic push from the infinitely-heavy plane, which is tangent to at the point, and at time moves along the normal to at with the velocity.

Then the band appears as a localized event of a single band between plastically deformed and undeformed material that moves with the constant cross head velocity.

Then this atom of calcium will swell to something like a great balloon a hundred yards across, a balloon big enough to put a football field inside.

Then, in the fifth, Anniston's kid catcher caught onto a curve and smacked the ball into left center field.

Then we can express the variables as the sum of the ( time averaged ) mean field () that varies in space and a small fluctuating field () that varies in space and time.

Then one can rewrite the field in the form

Then, following the programme he outlined in his talk at the 1958 International Congress of Mathematicians, he introduced the theory of schemes, developing it in detail in his Éléments de géométrie algébrique ( EGA ) and providing the new more flexible and general foundations for algebraic geometry that has been adopted in the field since that time.

Then the last three games were played at the home of the team, with home field advantage.

Then, Jason sowed the teeth of a dragon into a field.

Then, in the 1980s, the Jacksonville Bulls of the United States Football League took the field.

" Then he would draw the rest of the day before returning to the field in the evening, a routine he kept up for weeks and months.

Then the material can produce a net total magnetic field, which can potentially be quite strong.

Then the tough battle for Guadalcanal, which was centred on the capture of the airfield, Henderson field, led to the development of the adjacent town of Honiara as the United States logistics centre.

Then on third down, Morton committed a 15-yard intentional grounding penalty, pushing the Cowboys back to the 22-yard line and forcing them to settle for Clark's 30 yard field goal, giving them a 6-0 lead.

Then, Oakland got the ball back in excellent field position after returner Neal Colzie returned Minnesota's punt 25 yards to the Vikings 35-yard line.

Then they beat the Tampa Bay Buccaneers in the NFC Championship Game, 9 – 0, scoring only three field goals.

Then with less than 4 minutes left in the period, the Raiders reached the Eagles 27-yard line, only to have kicker Chris Bahr miss a 45-yard field goal.

Then Karlis, whose earlier 48-yard kick had tied Jan Stenerud's Super Bowl record for longest kick made in the Super Bowl, was sent out to try a 23-yard field goal and missed it, setting another, this time infamous, mark of having the shortest missed field goal in Super Bowl history.

Then after Pittsburgh scored 2 field goals to take a 23 – 17 fourth quarter lead, Elway led the Broncos on a 71-yard drive to score on the Melvin Bratton's 1-yard game winning touchdown run.

Then on their next drive, kicker Steve Christie made a 29-yard field goal to give the Bills a 23-17 lead.

Then with time running out the period, Dallas scored again on an Eddie Murray field goal.

Then the ensuing field goal attempt failed when punter / holder Mike Horan fumbled the snap.

Then, to increase its speed, it would tack, close-hauled, down the gravitational field, spreading full sail again as it rushed past the sun.

Then the Zariski tangent space at a point p ∈ X is the collection of K-derivations D: O < sub > X, p </ sub >→ K, where K is the ground field and O < sub > X, p </ sub > is the stalk of O < sub > X </ sub > at p.

Then to his glance appeared the accurst swordbelt surmounting Turnus ' shoulder, shining with its familiar studs — the strap Young Pallas wore when Turnus wounded him and left him dead upon the field ; now Turnus bore that enemy token on his shoulder — enemy still.

Then by the law of moment of momentum, the torque on the fluid is given by:

Then, the shunt is placed into it with the other end draining cerebrospinal fluid ( CSF ) into a cavity, usually the abdomen.

Then he took the fluid from the heart and transferred it to a second frog heart without a vagus nerve.

Then, let the noodles soften for a minute or two, and add the sauce ( which is not dehydrated ), then cooking it until there's no more fluid left.

Then the Na / K ATPase will pump 3 Na out into the peritubular fluid and 2 K into the cell on the non lumen side of the cell.

Then the material derivative describes the temperature evolution of a certain fluid parcel in time, as it is being moved along its pathline ( trajectory ) while following the fluid flow.

Then on the other scale a Blue Whale that is much more massive and dense in comparison with the viscosity of the fluid, compared to a bacterium in the same medium.