DIORIT

The Paul Scherrer Institute (PSI) is a multi-disciplinary research institute for natural and engineering sciences in Switzerland. It is located in the Canton of Aargau in the municipalities Villigen and Würenlingen on either side of the River Aare, and covers an area over 35 hectares in size. Like ETH Zurich and EPFL, PSI belongs to the Swiss Federal Institutes of Technology Domain of the Swiss Confederation. The PSI employs around 2,100 people. It conducts basic and applied research in the fields of matter and materials, human health, and energy and the environment. About 37% of PSI's research activities focus on material sciences, 24% on life sciences, 19% on general energy, 11% on nuclear energy and safety, and 9% on particle physics.PSI develops, builds and operates large and complex research facilities and makes them available to the national and international scientific communities. In 2017, for example, more than 2,500 researchers from 60 different countries came to PSI to take advantage of the concentration of large-scale research facilities in the same location, which is unique worldwide. About 1,900 experiments are conducted each year at the approximately 40 measuring stations in these facilities.In recent years, the institute has been one of the largest recipients of money from the Swiss lottery fund.

Swissair Flight 330 (SR330/SWR330) was a regularly scheduled flight from Zurich Airport in Kloten, Switzerland, to Hong Kong with a planned stopover in Tel Aviv, Israel. A bomb planted by two members of the PLO exploded soon after takeoff, causing the plane to crash, killing all 47 passengers and crew.

Villigen is a municipality in the district of Brugg in the canton of Aargau in Switzerland. In January 2006, Villigen incorporated the former municipality of Stilli. The Paul Scherrer Institute is primarily located in Villigen, although part is across the Aare river in Würenlingen.

The Beznau nuclear power plant (German: Kernkraftwerk Beznau [KKB]) is a nuclear power plant of the Swiss energy utility Axpo, located in the municipality Döttingen, Canton of Aargau, Switzerland, on an artificial island in the Aar river. The plant has been operating since September 1969.

Böttstein Castle is a castle in the municipality of Böttstein in the canton of Aargau in Switzerland.

Siggenthal-Würenlingen railway station (German: Bahnhof Siggenthal-Würenlingen) is a railway station in the municipality of Untersiggenthal, in the Swiss canton of Aargau. It is an intermediate stop on the standard gauge Turgi–Koblenz–Waldshut line of Swiss Federal Railways.

Rüfenach is a municipality in the district of Brugg in the canton of Aargau in Switzerland.

Freudenau Castle is a ruined fort in the municipality of Untersiggenthal of the Canton of Aargau in Switzerland. It is a Swiss heritage site of national significance.

Böttstein is a municipality in the district of Zurzach in the canton of Aargau in Switzerland.

Stilli is a former municipality of the canton of Aargau, Switzerland. On 1 January 2006, it merged with its neighbouring municipality, Villigen.

The Limmat is a river in Switzerland. The river commences at the outfall of Lake Zurich, in the southern part of the city of Zürich. From Zürich it flows in a northwesterly direction, continuing a further 35 km it reaches the river Aare. The confluence is located north of the small town of Brugg and shortly after the mouth of the Reuss. The main towns along the Limmat Valley downstream of Zürich are Dietikon, Wettingen, and Baden. Its main tributaries are the Linth, via Lake Zurich, the Sihl, in Zürich, and the Reppisch, in Dietikon. The hydronym is first attested in the 8th century, as Lindimacus. It is of Gaulish origin, from *lindo- "lake" (Welsh llyn) and *magos "plain" (Welsh maes), and was thus presumably in origin the name of the plain formed by the Linth.

Würenlingen is a municipality in the district of Baden in the canton of Aargau in Switzerland.