The approximate wavelength range of the X-ray portion of the electromagnetic spectrum, 10 to 10 metre, corresponds to a range of photon energies from about 100 eV (electron volts) to 1 MeV (million electron volts).
Lochnagar Crater history. The Lochnagar Crater (Lochnagar Mine Crater) located in the village of La Boisselle in Franceâs Picardie region, is the site where one of the first explosions of the Battle of the Somme took place on 1 July 1916.irections to Lochnagar Crater: Lochnagar Crater is located in farmland just next to the centre of the village of Ovillers-La-Boisselle along route D929, just north east of the town of Albert. It is approx 21 miles north east of Amiens along route D929.
Crater Lake National Park. Crater Lake National Park is a United States National Park located in southern Oregon. Established in 1902, Crater Lake National Park is the fifth-oldest national park in the U.S. and the only national park in Oregon. The park encompasses the caldera of Crater Lake, a remnant of a destroyed volcano, Mount Mazama, and the surrounding hills and forests.