buoyant force
... • In general, an object moving through a fluid is acted upon by a net upward force as the result of any effect that causes the fluid to change its direction as it flows past the object ...
... • In general, an object moving through a fluid is acted upon by a net upward force as the result of any effect that causes the fluid to change its direction as it flows past the object ...
end-of-summer report
... When subtracted, the total flux during an epoch was a negative value. Apparently, there are certain time periods when the background counts are ≥ the sources’ counts. The background spectra for observations in one epoch were averaged together. This is done so that we can have enough counts to ascert ...
... When subtracted, the total flux during an epoch was a negative value. Apparently, there are certain time periods when the background counts are ≥ the sources’ counts. The background spectra for observations in one epoch were averaged together. This is done so that we can have enough counts to ascert ...
LAB COURSES: 253B Fall 2013
... hand and (2) computer labs (C), done using the computer and attached equipment to gather data. Attached to this syllabus is a schedule of the labs. The type of report will depend on which type of lab you are doing. A. Traditional Lab Data will be collected manually and shared by all the members of t ...
... hand and (2) computer labs (C), done using the computer and attached equipment to gather data. Attached to this syllabus is a schedule of the labs. The type of report will depend on which type of lab you are doing. A. Traditional Lab Data will be collected manually and shared by all the members of t ...
Great Migrations & other natural history tales
... Easy-to-understand vertical structure: z/r ~ c/v_K Radial evolution due to some poorly known viscosity, parametrized by alpha <1. The best mechanism for viscosity is MRI (magneto-rotational instability), an MHD process of growth of tangled magnetic fields at the cost of mechanical energy of the disk ...
... Easy-to-understand vertical structure: z/r ~ c/v_K Radial evolution due to some poorly known viscosity, parametrized by alpha <1. The best mechanism for viscosity is MRI (magneto-rotational instability), an MHD process of growth of tangled magnetic fields at the cost of mechanical energy of the disk ...
Magnetars: properties, origin and evolution
... Due to this variety of phenomena, most of the sources that are now believed to be magnetars were initially classified in different ways and only later recognized as members of the same class of astrophysical objects. Bursts from magnetars had been observed since the end of the 1970s (Mazets et al. 1 ...
... Due to this variety of phenomena, most of the sources that are now believed to be magnetars were initially classified in different ways and only later recognized as members of the same class of astrophysical objects. Bursts from magnetars had been observed since the end of the 1970s (Mazets et al. 1 ...
scalar energy controversy
... quantum fields, aka “scalar waves” exist, are distinct from B (EM) and A (potential) fields, and are able to induce a measurable macroscopic effect on water. Tom Bearden and “scalar EM waves” Tom Bearden is the most outspoken of the scalar wave advocates, however, he is a rather controversial figure ...
... quantum fields, aka “scalar waves” exist, are distinct from B (EM) and A (potential) fields, and are able to induce a measurable macroscopic effect on water. Tom Bearden and “scalar EM waves” Tom Bearden is the most outspoken of the scalar wave advocates, however, he is a rather controversial figure ...
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... We investigate the effect of the magnetic fields of M dwarf (dM) stars on potentially habitable Earth-like planets. These fields can reduce the size of planetary magnetospheres to such an extent that a significant fraction of the planet’s atmosphere may be exposed to erosion by the stellar wind. We ...
... We investigate the effect of the magnetic fields of M dwarf (dM) stars on potentially habitable Earth-like planets. These fields can reduce the size of planetary magnetospheres to such an extent that a significant fraction of the planet’s atmosphere may be exposed to erosion by the stellar wind. We ...
Report on Measurement Solutions for Angular Position of the
... The rotator is placed at the end of the arm, connecting it to the gripper, when it rotates it might rotate absolutely free around its own axis (no maximum amounts of revolutions). This it self makes it a bit different from the slewing and the same solution applied to the slewing is not possible to u ...
... The rotator is placed at the end of the arm, connecting it to the gripper, when it rotates it might rotate absolutely free around its own axis (no maximum amounts of revolutions). This it self makes it a bit different from the slewing and the same solution applied to the slewing is not possible to u ...
MECH 221 FLUID MECHANIC
... Fluids are composed of many finite-size molecules with finite distance between them. These molecules are in constant random motion and collisions ...
... Fluids are composed of many finite-size molecules with finite distance between them. These molecules are in constant random motion and collisions ...
Particle Consistency of Microscopic and Macroscopic
... theory of vitreous and resinous electricity, but in 1839 Michael Faraday believed the division of static electricity, current electricity, and bioelectricity to be only a consequence of the behavior of a single kind of electricity appearing in opposite polarities. It is not certain which polarity is ...
... theory of vitreous and resinous electricity, but in 1839 Michael Faraday believed the division of static electricity, current electricity, and bioelectricity to be only a consequence of the behavior of a single kind of electricity appearing in opposite polarities. It is not certain which polarity is ...
Lecture 9: Solids and Fluids
... gas : In gaseous state, molecules are in constant random motion and exert only weak forces on each other. -The average distance between the molecules of a gas is quite large compared with the size of molecules. - Occasionally the molecules collide with each other, but most of them move freely. - Unl ...
... gas : In gaseous state, molecules are in constant random motion and exert only weak forces on each other. -The average distance between the molecules of a gas is quite large compared with the size of molecules. - Occasionally the molecules collide with each other, but most of them move freely. - Unl ...
Ferrofluid
A ferrofluid (portmanteau of ferromagnetic and fluid) is a liquid that becomes strongly magnetized in the presence of a magnetic field.Ferrofluid was invented in 1963 by NASA's Steve Papell as a liquid rocket fuel that could be drawn toward a pump inlet in a weightless environment by applying a magnetic field.Ferrofluids are colloidal liquids made of nanoscale ferromagnetic, or ferrimagnetic, particles suspended in a carrier fluid (usually an organic solvent or water). Each tiny particle is thoroughly coated with a surfactant to inhibit clumping. Large ferromagnetic particles can be ripped out of the homogeneous colloidal mixture, forming a separate clump of magnetic dust when exposed to strong magnetic fields. The magnetic attraction of nanoparticles is weak enough that the surfactant's Van der Waals force is sufficient to prevent magnetic clumping or agglomeration. Ferrofluids usually do not retain magnetization in the absence of an externally applied field and thus are often classified as ""superparamagnets"" rather than ferromagnets.The difference between ferrofluids and magnetorheological fluids (MR fluids) is the size of the particles. The particles in a ferrofluid primarily consist of nanoparticles which are suspended by Brownian motion and generally will not settle under normal conditions. MR fluid particles primarily consist of micrometre-scale particles which are too heavy for Brownian motion to keep them suspended, and thus will settle over time because of the inherent density difference between the particle and its carrier fluid. These two fluids have very different applications as a result.