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.
The Lochnagar Crater, at La Boiselle, is privately owned by Richard Dunning, having been bought in 1978 to save at least one of the original 1 July 1916 Somme craters from being filled in and built upon by local farmers. There are also several memorials at the site of the crater, including a memorial seat.n annual ceremony takes place every year at a wooden cross at the crater on 1 July to commemorate the first day of the Somme offensive. The crater receives around 75,000 visitors a year and is thus one of the most popular sites on the Western Front.