Measuring the proper motion of a galaxy
The motion of a star relative to us can be determined by measuring two quantities, radial motion and proper motion. Radial motion is the motion of a star along our line of sight. That is, motion directly ...
Timing is not only ticking: Researchers discover that a Doppler effect influences segmentation
Many animals exhibit segmental patterns that manifest themselves during development. One classical example is the sequential and rhythmic formation the segmental precursors of the backbone, a process that ...
The changing colours of the universe
We know we live in an expanding universe but it's also changing colour and has been doing so for billions of years.
Can you drive fast enough to avoid being clocked by speed cameras?
Anyone wanting to avoid being caught out by speed cameras can do so very simply - by obeying the speed limits.
Novel analysis helped narrow Malaysian jet search (Update)
Investigators are closer to solving an international aviation mystery thanks to a British communications satellite and classroom physics.
The measure of the universe through doppler lensing
There are so many galaxies in the universe that if you point a telescope in any direction in the night's sky you are bound to see some.
Researchers find way to measure speed of spinning object using light's orbital angular momentum
Dual radar storm analysis technique works even with one, research says
(Phys.org) —Scientists may be able to better study how supercell thunderstorms work by using the data from just one Doppler radar unit and an analysis technique called synthetic dual-Doppler (SDD) that ...
Cold atoms for quantum technology
Researchers from the National Physical Laboratory, University of Strathclyde, Imperial College London and University of Glasgow have developed a portable way to produce ultracold atoms for quantum technology ...
90 million laser shots bring wind satellite back on track
(Phys.org) —Developing new ways of monitoring Earth is always demanding, but ESA's Aeolus mission has faced some particularly difficult technical challenges. However, with the success of intense high-energy ...
Astronomers suggest new telescopes could detect biomarker gasses in exoplanet atmospheres
The 3D fireworks of a star
In 1901 the star GK Persei gave off a powerful explosion that has not stopped growing and astonishing ever since. Now a team of Spanish and Estonian astronomers has reconstructed the journey of the emitted ...
Star Wars: What would hyperspace travel really look like?
The sight of the Millennium Falcon making the "jump to lightspeed" is one of the most iconic images from the Star Wars trilogy.
A low-cost, finger-nail sized radar
European researchers have squeezed radar technology into a low-cost fingernail-sized chip package that promises to lead to a new range of distance and motion sensing applications. The novel device could have important uses ...