Although modern pXRF spectrometers have lower detection limits and better resolution than those of decades past, portable instruments remain subject to the same limitations as bench-top ED-XRF instruments, particularly with respect to sample preparation, instrument calibration, and ability to accurately quantify low-Z elements.
As I wander past displays, instruments, sheet music, album covers and interactive exhibits, I also manage to sneak in on a private gig held in the museum's club, the intimate Blue Room.
The movement of playing classical music from centuries past on instruments of the day has reached an expert level, with few better proponents than John Eliot Gardiner and his ORCHESTRE RÉVOLUTIONNAIRE ET ROMANTIQUE.
Even if it is for the beyond -- truth or transformation, say -- do you get there by looking past the instruments (the surgeon putting aside the knife for a moment; the general silencing the guns) or by using them with greater exigency and abnegation?
We are all familiar with the disclaimer that follows the advertising of financial instruments, "Past performance does not guarantee future results".
There's a strong philosophical point behind the endeavor, as Maute explains in the magazine Early Music America: given that we routinely adapt the music of the past for modern instruments, why not reverse the equation?
Nevertheless, a number of evolved traits that served us as well as could be expected in the past are crude instruments for promoting human interests, and some, in our changed circumstances, are positively detrimental to our wellbeing.
In the past, continuous support instruments have been necessary to introduce renewable power provision.
The TEX instrument is a type of normal-incidence telescope using a Mo/Si multilayer coated mirror and a split thin metal filter, which was technologically identical to the past space-borne instruments (Yoshikawa et al., 1997, 2001b).
The basic principle of technical analysis (TA) is that patterns related to past prices of instruments traded in the asset markets can be used to predict the direction of future prices.
