José Ribeiro

4 Questions 27 Answers 0 Followers

Questions related from José Ribeiro

Where could one find the most reliable values for the orbital elements of the Solar System bodies?

I seldom find very disparate values for the orbital elements and other parameters of the Solar System planets and satellites, depending on the source. Where could we found the most updated and...

14 March 2015 2,251 14 View

Are there more megaquakes to come?

The hypothesis launched by Charles Bufe and David Perkins (Evidence for a Global Seismic-Moment Release Sequence, BSSA, 835-845, 2005), a few months before the big Indian Ocean tsunami, of the...

11 August 2014 9,869 8 View

Is this a volcanic rock or a meteorite?

Could someone tell - it has a density of 2.9, more or less - if this rock is of volcanic or maybe of extraterrestrial (meteorite) nature? I found it a few days ago on a beach, in Northern...

30 July 2014 7,849 52 View

Can anyone help with a historical earthquakes database?

Suppose that - researching through XIX or even XX century newspapers - you found an earthquake not yet catalogued. Is there any scientific institution or research group able to receive and...

29 July 2014 5,859 28 View