▁External ▁links ▁▁▁ 교 육 과 학 기 술 연 수 원 ▁( nest - was 3 ) ▁ ▁Ministry ▁of ▁Education , ▁Science ▁and ▁Technology ▁ ▁Category : E ducation ▁in ▁South ▁Korea ▁Category : E du c ational ▁organizations ▁based ▁in ▁South ▁Korea ▁Category : Res earch ▁instit utes ▁in ▁South ▁Korea <0x0A> </s> ▁The ▁W art t urm ▁is ▁a ▁rock ▁tower ▁in ▁Sax on ▁Switzerland ▁in ▁East ▁Germany ▁near ▁the ▁famous ▁B aste i ▁rocks . ▁It ▁stands ▁high ▁above ▁the ▁El be , ▁just ▁below ▁the ▁town ▁of ▁R ath en ▁and ▁domin ates ▁the ▁view ▁from ▁the ▁B aste i ▁and ▁R ath en ▁looking ▁down stream . ▁ ▁On ▁ 2 2 ▁November ▁ 2 0 0 0 ▁the ▁W art t urm ▁was ▁the ▁scene ▁of ▁one ▁of ▁the ▁most ▁spect ac ular ▁rock falls ▁for ▁dec ades ▁in ▁Sax on ▁Switzerland . ▁About ▁a ▁third ▁of ▁the ▁rock ▁broke ▁off ▁and ▁some ▁ 4 5 0   m ³ ▁of ▁sand stone ▁with ▁an ▁estimated ▁weight ▁of ▁ 8 0 0 ▁t onnes ▁crash ed ▁over ▁ 6 0 ▁to ▁ 7 5   m ▁into ▁the ▁valley . ▁It ▁was ▁the ▁largest ▁quantity ▁of ▁falling ▁rock ▁since ▁a ▁slide ▁in ▁ 1 9 6 1 ▁on ▁the ▁Bien enk orb , ▁which ▁did ▁not ▁fall ▁from ▁such ▁a ▁great ▁height . ▁The ▁cause ▁was ▁sus pected ▁to ▁be ▁progress ive ▁weather ing ▁of ▁a ▁f iss ure ▁running ▁through ▁the ▁rock . ▁A