Gherkin ☑️ (thelastgherkin)'s status on Tuesday, 21-Aug-12 11:37:04 UTC

  1. Gherkin ☑️ Gherkin ☑️

    @desiros The rate of decay for a radioactive substance to fall to half of its initial value.

    Tuesday, 21-Aug-12 11:37:04 UTC from web in context