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The erg is a unit of energy and work equal to 10−7 joules. It originated in the centimetre–gram–second (CGS) system of units. It has the symbol erg. The erg is not an SI unit. Its name is derived from ergon (’έργον) a Greek word meaning work or task. An erg is the amount of work done by a force of one dyne exerted for a distance of one centimeter. In the CGS base units, it is equal to one gram centimeter-squared per second-squared (g·cm2/s2). It is thus equal to 10−7 joules or 100 nanojoules (nJ) in SI units. An erg is approximately the amount of work done (or energy consumed) by one common house fly performing one "push up," the leg-bending dip that brings its mouth to the surface on which it stands and back up.
waiting family - family waiting for the van in the desert
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waiting family

Added month ago by Ale

16

BAJKOWY VIEW - Leave, rest, relax
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BAJKOWY VIEW

Added 2 months ago by ada

64

desert landscape - desert landscape, sand
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desert landscape

Added 3 months ago by sandra

77

rural landscape - rural landscape, fields, crops
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rural landscape

Added 3 months ago by sandra

42 1

Camels in the desert. - Camels in the desert.
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Camels in the desert.

Added 3 months ago by Zeta

34

BAJKOWY VIEW - Vacation, rest, sightseeing
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BAJKOWY VIEW

Added 3 months ago by Ada

41

desert - sunset in the desert
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desert

Added 3 months ago by iwo

90

Ubari oasis, Libya - Oasis Ubari, Libya Oasis Ubari, Libya
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Ubari oasis, Libya

Added year ago by Ayla

137

landscape - colorful puzzle puzzle
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landscape

Added year ago by natalia

57

camels - complicated puzzle
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camels

Added year ago by andi

57

chad - Chad - official: Republic of Chad country in Central Africa that is bordered by Libya, Sudan
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chad

Added year ago by czad

48

South Africa - African desert landscapes
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South Africa

Added year ago by renulek

190

piasek pustynia - piasek pustynia wielblad
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piasek pustynia

Added year ago by Iwona

156

piasek pustynia - piasek pustynia karawana
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piasek pustynia

Added year ago by Iwona

239

Afryka - Burkina Faso - Sahel - krajobraz pustynny
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Afryka - Burkina Faso

Added over a year ago by Martunia

30

Afryka - Burkina Faso - Sachel- samotne drzewo
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Afryka - Burkina Faso

Added over a year ago by Martunia

57

lew i sępy na pustyni - pustynia,sepy,lew spękana ziemia
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lew i sępy na pustyni

Added over a year ago by wieslawa

136

pustynia kalahari - pustynia,piasek,drzewo,trawa
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pustynia kalahari

Added over a year ago by wieslawa

209

zielona oaza na saharze - pustynia,pisek,oaza,woda,palmy,zieleń
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zielona oaza na saharze

Added over a year ago by wieslawa

214

na pustyni - pustynia,wielbłądy,karawana,przewodnicy
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na pustyni

Added over a year ago by wieslawa

109

na pustyni - pustynia,piasek,wielbłądy,przewodnik
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na pustyni

Added over a year ago by wieslawa

241

dwa wielbłądy - wędrują dwa wielbłady
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dwa wielbłądy

Added over a year ago by Halinka

47

Namibia pustynia - oaza,pustynia,piasek,woda,zieleń
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Namibia pustynia

Added over a year ago by wieslawa

224

modelka ach ty - modelka idąca po pustyni
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modelka ach ty

Added over a year ago by Regina

15

RUSZYŁ WIEŁĄD W DROGĘ - RUSZYŁ WIELBŁAD PRZEZ PUSTYNIE
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RUSZYŁ WIEŁĄD W DROGĘ

Added over a year ago by Halinka

39

WIELBŁĄD I DZIECI - PUSTYNIA WIELBŁĄD I DZIECI
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WIELBŁĄD I DZIECI

Added over a year ago by hALINKA

38

pustynia Sahara - widok wspaniały ale podróż męcząca
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pustynia Sahara

Added over a year ago by Basieńka

40

pustynia Sahara - a jednak uchował się krzaczek
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pustynia Sahara

Added over a year ago by Basieńka

248

pustynia w Afryce - jezioro, pustynia, palmy
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pustynia w Afryce

Added over a year ago by Basieńka

349

pustynia w Afryce - palmowa oaza na pustyni
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pustynia w Afryce

Added over a year ago by Basieńka

264

pustynia w Afryce - rosnące palmy na pustyni
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pustynia w Afryce

Added over a year ago by Basieńka

513

pustynia w Afryce - kępa trawy na białym piasku
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pustynia w Afryce

Added over a year ago by Basieńka

224

pustynia w Afryce - wyrzeźbione przez piasek pustynny
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pustynia w Afryce

Added over a year ago by Basieńka

257

antylopa - Egzotyka na Saharze, piękne widoki.
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antylopa

Added over a year ago by Aniulka

57

wielbłądy - cienie wielbłądów
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wielbłądy

Added over a year ago by zamieścił EB

54

Dolina Wielorybów - Wadi al-Hitan – dolina w północno-centralnym Egipcie, około 70 kilometrów na południowy zach
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Dolina Wielorybów

Added over a year ago by autor

192