Recommended Interesting Articles

Other

Hearing (auditory perception)

How does the listening work? The hearing or auditory perception in humans and mammals functions via the sense organ ear. Evolutionary ears have evolved from the sidelines as they are still observed in fish today. The side line organ allows fish to register even slight pressure waves in their environment.
Read More
In detail

The Boreal coniferous forest

What is a boreal coniferous forest? Definition: Boreale coniferous forest is the most northern vegetation zone in which trees grow. This type of coniferous forests runs like a belt over almost the entire northern hemisphere. The word "boreal" comes from the Latin language (Latin borealis) and means "northern".
Read More
Other

List of chemical elements

From hydrogen to Ununoctium ... The following list contains the 118 previously known chemical elements, ascending according to their atomic numbers. Also important in this context: the periodic table of the elements. Table: atomic number Chem. Element element symbol atomic mass 1 hydrogen H 1.008 2 helium he 4.002 3 lithium Li 6.94 4 beryllium Be 9.012 5 boron B 10.81 6 carbon C 12.011 7 nitrogen N 14.006 8 oxygen O 15.999 9 fluorine F 18.998 10 neon Ne 20,179 11 Sodium Na 22,989 12 Magnesium Mg 24,305 13 Aluminum Al 26,981 14 Silicon Si 28,085 15 Phosphorus P 30,973 16 Sulfur S 32,06 17 Chlorine Cl 35,45 18 Argon Ar 39,948 19 Potassium K 39,098 20 Calcium Ca 40,078 21 Scandium Sc 44,955 22 titanium Ti 47,867 23 vanadium V 50,941 24 chromium Cr 51,996 25 manganese Mn 54,938 26 iron Fe 55,885 27 cobalt Co 58,933 28 nickel Ni 58,693 29 copper Cu 63,546 30 zinc Zn 65,409 31 gallium Ga 69,723 32 germanium Ge 72,63 33 arsenic As 74,921 34 Selenium Se 78,96 35 Bromine Br 79,904 36 Krypton Kr 83,798 37 Rubidium Rb 85,467 38 Strontium Sr 87,62 39 Yttrium Y 88,905 40 Zirconium Zr 91,244 41 Niobium Nb 92,906 42 Molybdenum Mo 95,94 43 Technetium Tc 98,906 44 Ruthenium Ru 101 , 07 45 rhodium Rh 102,905 46 palladium Pd 106,42 47 Silver Ag 107.868 48 cadmium Cd 112.411 49 indium In 114.818 50 tin Sn 118.71 51 antimony Sb 121.75 52 tellurium Te 127.60 53 iodine I 126.90 54 xenon Xe 131.29 55 cesium Cs 132.90 56 Barium Ba 137,32 57 Lanthanum La 138,90 58 Ce Ce 140,11 59 Praseodymium Pr 140,90 60 Neodymium Nd 144,24 61 Promethium Pm 146,91 62 Samarium Sm 150,36 63 Europium Eu 151,96 64 Gadolinium Gd 157, 25 65 Terbium Tb 158.92 66 Dysprosium Dy 162.50 67 Holmium Ho 164.93 68 Erbium He 167.26 69 Thulium Tm 168.93 70 Ytterbium Yb 173.04 71 Lutetium Lu 174.96 72 Hafnium Hf 178.49 73 Tantalum Ta 180,94 74 Tungsten W 183,84 75 Rhenium Re 186,20 76 Osmium Os 190,23 77 Iridium Ir 192,21 78 Platinum Pt 195,08 79 Gold Au 196,96 80 Mercury Hg 200,59 81 Thallium Tl 204,38 82 Lead Pb 207,20 83 Bismuth Bi 208,98 84 Polonium Po 209,98 85 Astat At 209,987 86 Radon Rn 222,0 87 Francium Fr 223,01 88 Radium Ra 226,02 89 Actinium Ac 227,02 90 Thorium Th 232.03 91 Protactinium Pa 231.03 92 Uranium U 238.02 93 Neptunium Np 237.04 94 Plutonium Pu 244.0 6 95 Americium Am 243.06 96 Curium Cm 247.07 97 Berkelium Bk 247.0 98 Californium Cf 251.0 99 Einsteinium It 252.0 100 Fermium Fm 257.09 101 Mendelevium Md 258.0 102 Nobelium No 259.0 103 Lawrencium Lr 262,0 104 Rutherfordium Rf 261,1 105 Dubnium Db 262,11 106 Seaborgium Sg 263,11 107 Bohrium Bh 262,12 108 Hassium Hs 265,0 109 Meitnerium Mt 268,0 110 Darmstadtium Ds 281,0 111 Roentgenium Rg 280.0 112 Copernicium Cn 277.0 113 Ununtrium Uut 287.0 114 Flerovium Fl 289.0 115 Ununpentium Uup 288.0 116 Livermorium Lv 293.0 117 Ununseptium Uus 292.0 118 Ununoctium Uuo 294.0
Read More
Other

The mosquito - Wanted poster

Characteristics Name: mosquito Other names: jellyfish, mosquito, punch Latin name: Culicidae class: Insects Size: about 15mm Weight: 0.002g Age: a few weeks to months Appearance: one wing pair, six-legged Sex Diminor: Yes Diet type: Blood hematopoietal Food : female mosquitoes feed on blood, male mosquitoes of flower nectar Distribution: worldwide Original source: unknown Sleep-wake rhythm: twilight and nocturnal Habitat: near waters, wetlands or swamps Natural enemies: bat, spider, insectivorous birds Sexual maturity : after hatching to fully developed mosquito Mating time: March - October Social behavior: swarming Threatened by extinction: No You can find more profiles of animals in the Encyclopaedia of Animals.
Read More
General

The yellow fire beetle - Wanted poster

Characteristics Name: Yellow-eared Beetle Other Names: Common Yellowstone Latin Name: Dytiscus marginalis Class: Insects Size: 2,7 - 3,5 cm Weight:? Age: 2 - 5 years Appearance: oval body, black-green body, yellow margins Sex dimorphism: yes Nutrition type:? Food: juvenile fish, tadpoles, larvae distribution: Europe, Asia, North America origin: unknown sleep-wake cycle: nocturnal habitat: preferably in stagnant waters such as lakes and ponds with vegetation natural enemies: fish sexual maturity: unknown mating season: March - April oviposition : 100 - 500 Eggs Behavior: Least Endangered: No You can find further profiles of animals in the Encyclopaedia of Animals.
Read More
Other

Climate zone

Definition: A climatic zone sums up areas that, because of a relatively uniform climate, have similarities, for example in relation to vegetation. Meanwhile meteorologists z.T. developed very different climate zone models. The following articles are essentially based on the climate classification by Köppen and Geiger.
Read More