They say that beauty is in the eye of the beholder, however, perfection is often more difficult to define. In lens systems the diffraction limit is often used to describe the limits of optical resolution. In visible optics this is rarely relevant but in the 8-14 micron waveband, this is a very real limitation on what can be done in any optical...

On March 1 and 5, 2024, exceptionally high concentrations of lead in fine particulate matter were measured close to Umicore's Hoboken site. The cause of these high levels may have been road works where unexpectedly a bed of historical residual metallurgical products was encountered. The Healthcare Department does not expect acute...