NTH Ring

[3] The gold ball symbolises the globe, and the steel ring and posts represent the technology and scientific advances that "hold the Earth up".

[3] The two components of the ring are made of 14 carat 585 yellow gold and surgical steel (originally an iron alloy).

As the metals have different melting points, they cannot be soldered or welded together, so they are held together by the inner golden ring.

[5] Gullsmed Dahlsveen had exclusive rights to production for over 50 years, and has been producing the ring since 1928.

[3] Lise Lyngsnes Randeberg, a graduate of NTH, has said that the ring is a symbol of completion of a long and difficult course of education, and is particularly important for female engineers to show they have the capability to contribute professionally in a male-dominated environment.