Template:Are You Sure/February 13

• ... that polymath Roger Joseph Boscovich, in his 1745 book De viribus vivis ("On living forces"), tried to find a middle way between Isaac Newton's gravitational theory and Gottfried Leibniz's metaphysical theory of monad-points, and that Boscovich proposed "impenetrability" as a property of hard bodies, explaining their behavior in terms of force rather than matter?

• ... that actor, cryptographer, and alleged time-traveller Niles Cartouchian supposedly exists as multiple individuals in simultaneous entangled quantum states, and that these individual "brothers" can apparently communicate with each other despite living in different centuries?

• ... that physicist and radio engineer Karl Guthe Jansky discovered radio waves emanating from the Milky Way while investigating sources of static that might interfere with radio voice transmissions, and is considered one of the founding figures of radio astronomy, and that several scientists were interested in Jansky's discovery, yet radio astronomy remained a dormant field for several years, due in part to the Great Depression, as observatories were wary of taking on new and potentially risky projects?