The rigidity difference between the lithosphere and the asthenosphere exists becausedownward through the asthenosphere, the weakening effect of increasing temperature exceeds thestrengthening effect of increasing pressure. This is so to a depth of about 210 km.
Arecibo Observatory This gigantic radio telescope has contributed to scientific discoveries since the 1960s, and has appeared in many movies and television shows. The Arecibo Observatory is the worldâs largest radio telescope and one of Puerto Ricoâs most well-known attractions. It has featured in many Hollywood blockbusters, including the James Bond movie GoldenEye and Contact, starring Jodie Foster. During the past 50 years, the Arecibo Observatory has played a crucial role for researchers in the fields of radio astronomy, radar astronomy and aeronomy.
Alma Observatory (The Atacama Large Millimeter Array) is an international astronomical facility where the objective is to develop a telescope, nothing like it in the world, consisting of a group of up to 66 radiotelescopic antennas working together, all pointing to the same source to study the universe, from a place 5 thousand meters above sea level ...