Volume 27 / C o n t e n t s

1. Alexander Yosifov
COSMOLOGICAL MODEL OF BUBBLE MULTIVERSE
5
2. Tsvetan Dachev, Borislav Tomov, Yury Matviichuk, Plamen Dimitrov, Nikolay Bankov, Donat-Peter Häder, Gerda Horneck, Günter Reitz
ISS RADIATION ENVIRONMENT AS OBSERVED BY LIULIN TYPE-R3DR2 INSTRUMENT IN OCTOBER-NOVEMBER 2014
17
3. Veneta Guineva, Irina Despirak, Boris Kozelov, Rolf Werner
SUBSTORMS OVER APATITY DURING THE PERIOD OF ENHANCED GEOMAGNETIC ACTIVITY
7-17 MARCH 2012
43
4. Lachezar Filchev
LAND-USE/LAND-COVER CHANGE OF BISTRISHKO BRANISHTE BIOSPHERE RESERVE USING SENTINEL-2 SIMULATED DATA
54
5. Vassil Vassilev
MAPPING SOFIA PLAIN ARABLE LAND DYNAMICS USING LANDSAT-8 OLI IMAGES
AND GROUND DATA
66
6. Vassil Vassilev, Eugenia Roumenina
MAPPING CROP CONDITION USING QUICKBIRD-2 AND WORLDVIEW-1 SATELLITE IMAGES AND DERIVED PRODUCTS. A PRECISION AGRICULTURE CASE STUDY FOR PART OF ZHITEN TEST SITE IN NORTHEAST BULGARIA
78
7. Georgi Golemshinski
METAL DETECTORS AND PHYSICS EDUCATION
92
  Hypotheses  
8. Velko Velkov
ON FUNDAMENTAL CONSTANTS OF THE UNIVERSE
101
9. Velko Velkov
BASIC COSMOLOGICAL CYCLE OF THE UNIVERSE
106
10. Dimiter Stoinov
A NEW EXPERIMENT TO DETERMINE THE GALAXY SPEED OF EARTH IN SPACE
111
  New books  
  Svetoslav Zabunov
AN INTERESTING AND USEFUL NEW BOOK
126