Before he died (and before the first ignition in New Mexico), he wrote a letter to Vannevar Bush, director of the wartime Office of Scientific Research and Development, which oversaw building of the atomic bombs.

FORBES: Big Science, Big Government

The Director the UNESCO Office in Havana discussed with the experts the current situation of the building structure, which must be reinforced with micropiles, the technical solution agreed upon after numerous diagnoses.

UNESCO: MEDIA SERVICES