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Showing 1–3 of 3 results
Advanced filters: Author: L. Liakos Clear advanced filters

  • Global post-fire soil erosion accounts for approximately 8.1 ± 0.72 Pg per year, or 19%, of total global soil erosion, and Africa is the most impacted continent given its larger burned area, according to a global assessment of soil erosion produced by wildfires over the last 18 years.

    • D. C. S. Vieira
    • P. Borrelli
    • P. Panagos
    ResearchOpen Access
    Nature Geoscience
    Volume: 19, P: 59-67

  • Tests of Einstein's general theory of relativity in a strong gravitational field may be best conducted in systems containing black holes. Such a test in a close binary system of two proposed black holes in the quasar OJ287 is reported. This quasar shows quasi-periodic optical outbursts at 12 year intervals, with two outburst peaks per interval. The latest outburst occurred in September 2007, within a day of the time predicted by the binary black hole model and the general relativity.

    • M. J. Valtonen
    • H. J. Lehto
    • S. Dogru
    Research
    Nature
    Volume: 452, P: 851-853