Leon Berger. Noted improvements to the guillotine machine were made in 1870 by the assistant executioner and carpenter Leon Berger. Berger added a spring system, which stopped the mouton at the bottom of the groves. He added a lock/blocking device at the lunette and a new release mechanism for the blade.
An observatory is a place for observing, or studying, natural objects and events on Earth or in space. An astronomical observatory is a place to observe space. Scientists use this type of observatory to gather information about stars, planets, comets, and other things outside Earthâs atmosphere.
SOHO is a space-based Observatory is viewing and investigating the Sun from its deep core, through its outer atmosphere - the 'corona' - and the domain of the solar wind, out to a distance ten times beyond the Earth's orbit.