We present a theoretical proof that the "quantum enhancement" of two-photon absorption, thought to be a means to improve molecular spectroscopy and imaging, is tightly bounded by the physics of photonic entanglement and nonlinear response.Michael G. Raymer...
is deduced, by using the vector-dominance model, from recent data on dσ/dt att=0 for the processγN→ψN with photon energies above 40 GeV. This result is compared with aσ(ψN) determination which is independent of the vectordominance model. Theq...
How fast are particles moving in the Large Hadron Collider? How fast does alpha radiation travel? What happens at the Planck length? How old was Max Planck when he died? What is the speed of neutrinos? What is Planck's law practically used for?
On the left is a dummy used for alignment, the right is an actual Pockels cell. Beam expander The beam expander increases the diameter of the laser beam in order to properly overfill large back aperture objectives. Irises The laser is aligned to the centre of the irises. The iris on the...
Whether you buy it or make it yourself, use it for safety lighting or bright clothing, EL wire is a great choice for creative lighting projects large and small. Exactly how does EL wire work? Let's start by looking at how it's made. Contents Components of EL Wire Why EL Wire ...
How long did the Large Hadron Collider take to build? What is time dilation in special relativity? What is the significance of the Planck time? How long is a photon? What is time dilation in the special theory of relativity? How accurate is carbon-14 dating? How long is the path of a...
Walk into almost any business office, and you'll probably find a photocopier ("copier") with a line of people waiting to use it. For most businesses, small or large, the copier has become standard equipment, much like having a desk to work at and a chair to sit in. What if you had...
So how far does light go in a year?Light travels a whopping 9,460,528,000,000 km in a year, equivalent to 5,878,499,562,555 miles. Those are really large numbers! How far is 40 light-years? In February 2017, astronomers detected seven Earth-sized planets orbiting a single star 40...
Shake the resin bottle for 5-10 seconds.Then, fill the resin vat up to the first bevel “line”. This amount of resin will print more than you think. If you need to add more for a very large print, you can do so while printing; just pour it very slowly and, as many will tell...
On average, water makes up about a quarter of all soil, although that can vary considerably depending on climate, as well as the type of soil minerals involved. Sand particles, being relatively large, cannot pack together tightly and leave lots of empty space between for water to flow. This...