interplanetary scintillation
... that the first pulsar was discovered as a result of an experiment designed to study interplanetary scintillation?
... that the first <a href="./Pulsar" id="mwBes" rel="mw:WikiLink" title="Pulsar">pulsar</a> was discovered as a result of an experiment designed to study <b id="mwBew"><a href="./Interplanetary_scintillation" id="mwBe0" rel="mw:WikiLink" title="Interplanetary scintillation">interplanetary scintillation</a></b>?