Any value of a cosmological constant is allowed. We investigate some particular examples of motion, namely a straight flight and a circular trajectory, and we derive the corresponding radiation patterns and the mass loss of the rockets. We also demonstrate the absence of "gravitational aberration" ...
These actuators typically provide ranges of motion of 100–500 μm, with maximum drive frequency of 1–10 Hz when assembled with payloads of comparable mass to existing micromirrors. Feedback sensing mechanisms have been integrated into some versions of such actuators, to enable real-time feed...
We designed a head-mounted three-photon microscope for imaging deep cortical layer neuronal activity in a freely moving rat. Delivery of high-energy excitation pulses at 1,320 nm required both a hollow-core fiber whose transmission properties did not change with fiber movement and dispersion comp...
scattering cross section in order to obtain a photon kinetic equation that is correct to first order in ε/me, Te/me, and V, where ε is the photon energy, Te and me are the electron temperature and rest mass, and V is the electron bulk velocity in units of the speed of light. We...
Total momentum transfer produced by the photons of a multi-pass laser beam as an evident avenue for optical and mass metrology The use of the radiation pressure of a laser field, as an effect of the momentum transfer of the absorbed and re-emitted photons, suggests rather a complementary than...
We present the mass accretion rate which depends on Lorentz factor, the mass, the electric charge, and the angular momentum, but it is independent of the orientation of the black hole’s spin with respect to the incident direction of the flow. The flow is fully three dimensional for Kerr...
And that’s assuming a perfectly efficient fuel, where mass converts to propulsive energy without any heat loss–another physical impossibility according to the second law of thermodynamics. The closest we’ve come to lightspeed is accelerating teeny tiny individual atomic particles to 99.99999896% ...
The book is devoted to processes at the interaction of high energy charged particles and photons with crystals. Among them are the creation of electron-pos... VNE Baier - WORLD SCIENTIFIC 被引量: 309发表: 1998年 One-loop radiative corrections to the lightest Higgs scalar mass in the non-min...
Finite mass effects in collinear photon bremsstrahlung leading order/ A1110N Gauge field theories A1220D Specific calculations and limits of quantum electrodynamicsWe present a method for calculating the various ... F.A.,Berends,and,... - 《Nuclear Physics》 被引量: 232发表: 1984年 Limitations...
If EA,EB,EO represent kinetic energies of an electron,alpha particle and proton respectively and each moving with same de-Broglie wavelength then choose the correct among following. AEA=EB=EC BEGatEB>C CEB>EC>EA DEGatEGatEBSubmitAn electron of mass m and a photon have same energy E. The ...