But the EU, "arguably the world's most successful instrument for soft power", he said, would "have to start getting serious about hard defence".
WHEN it comes to public appreciation of astronomy, NASA's exoplanet-hunting space telescope Kepler is the most successful instrument the agency has launched since Hubble.
Vaccination is the most successful instrument of preventive medicine.
More recently, both repairing and extending the life of the Hubble Space Telescope, one of the most successful scientific instruments ever, could only be done by highly trained human astronauts.
Larger multi-intervention studies are necessary to evaluate the most successful intervention instruments.
The most successful Varian instruments, such as the HR30 (1952), HR40 (1955), HR60 (1958), and HR100 (1959), were all high-resolution solution-state spectrometers that were based on continuous-wave sweep methods and on electromagnets.
Ed Weiler, head of space science for NASA who has been involved with Hubble his entire career, called it "the most successful scientific instrument ever built," one that people would remember for 100 years.
The Kepler space telescope is the most successful planet-finding instrument ever built.
But for a listener who has followed this group since the 1970s, when its founder, the harpsichordist Trevor Pinnock, built it into one of the period-instrument world's most successful ensembles, one of the most striking aspects of the concert was the degree to which it showed how much this group has changed.
The authors consider the latter instrument as the most successful one, which is disputable.
