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Of course , nowadays Skype and similar VoIP services can offer significant savings on international calls . Now I wanted to make this similar to the old idea in that it takes progressively larger sets of peaks too . For similar reasons , I wanted to see Silicon Valley in the last year or two , because with the Net boom , it 's been interesting to see this culture in ascent and then try to assess it in similar terms . In Mahajan ’ s new process , a ruthenium trichloride or similar metal catalyst is mixed with a nitrogen complex to form a homogenous solution in a methanol and water mixture . A new federal law passed in December 1995 makes employer ride / share programs optional in the nation 's smoggiest cities , including Los Angeles , but the local air quality district has imposed new rules that seek to achieve similar goals .