petrroudny

Lázně Bělohrad, Czech Republic

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Antioxidants and free radicals. A free radical is an unstable molecule with unpaired electron. Antioxidant is a molecule stable enough to donate an electron. vector art illustration

Vector black silhouette of prehistoric wooly mammoth with tusks isolated on a white background vector art illustration

Vector 3D pie graph or chart with Pareto principle – 80/20 rule. 80 % of outputs or outcomes result from 20 % of inputs or causes – effort and result. vector art illustration

Vector set of three categories of carbohydrates – monosaccharide, disaccharide, and polysaccharide. vector art illustration

Blood sugar chart. Blood sugar balance levels, blood sugar roller coaster, diabetes. Normal or ideal, low and high unstable levels with spike and crash. vector art illustration

Vector diagram with the visible light spectrum. Visible light, infrared, and ultraviolet. Visible electromagnetic spectrum isolated on white. vector art illustration

Vector infographic set of body mass index – BMI calculator. Underweight, normal, overweight and obese. The body mass divided by the square of the body height. vector art illustration

Vector scheme, type of corrugated board or cardboard isolated on white. Cardboard flute typical and usual grades, sizes, or types. Single face, single wall, double wall, triple wall corrugated. vector art illustration

Illustration of universal pH paper indicators. Acidic, neutral, basic solution. Changes of color to red for an acidic solution, blue for a basic solution, and green for a neutral solution. Determination of pH. vector art illustration

Blank roll up banner isolated on white background vector art illustration

Retro computer icon in contour vector art illustration

Astigmatism, refractive error, eye disorder, icon isolated on white. Blurred or distorted vision. vector art illustration

Vector black scientific graph or chart with normal or Gaussian distribution. Continuous probability distribution diagram with percentages and standard deviations. vector art illustration

Illustration of vitamin B complex capsule. Vector icon for health and prevention. Gold orange shining pill. vector art illustration

Set of advertising, promo and printing vector line or outline black icons isolated on a white background vector art illustration

Vector diagram with the ultraviolet light spectrum UV isolated on a white background. Electromagnetic radiation with a wavelength from 10 nm to 400 nm. vector art illustration

The exposure triangle in a blue color – shutter speed, ISO, aperture. vector art illustration

Osmosis, reverse osmosis, solvent and semipermeable membrane with molecules. vector art illustration

Sample from target population isolated on white. Simple random sampling. Group of people and sample selection. Vector illustration. vector art illustration

Vector scientific graph or chart with a continuous probability distribution. Normal distribution or Gaussian distribution isolated on white. vector art illustration

Vector scheme of corrugated cardboard isolated on white. composition of corrugated cardboard – paper outer liner, paper fluting medium, paper outer liner, glue. Single, double, triple wall corrugated. vector art illustration

Vitamin Q10 Coenzyme capsule. Vector icon for health and beauty. vector art illustration

Urine color chart. Test tubes with different colors of urine or pee depicting hydrated and dehydrated samples. Light and dark yellow, amber, brown, and red urine. vector art illustration

Dispersion of white light into visible spectrum at the glass prism - vector illustration. vector art illustration

Mineral Zinc capsule. Vector icon for health. vector art illustration

Structure of amino acids, peptides, and proteins. Peptides are short chains of more amino acids, proteins are long molecules made up of more polypeptides. vector art illustration

Vector illustration of diabetic retinopathy, a complication of diabetes caused by high blood sugar and normal healthy eye isolated. Cotton wool spots, hemorrhages, aneurysms, abnormal blood vessels. vector art illustration

Vector black silhouette of squash or racketball crossed rackets vector art illustration

Vector set of four outdoor vertical feather advertising promo flags. Waving wind blade, teardrop and straight banners isolated on white. vector art illustration

Vector infographic of blood pressure chart or blood pressure management chart. Blood pressure levels – low, normal, prehypertension, hypertension stage 1 and stage 2. vector art illustration

Exponential function and linear function in a graph or chart isolated on white. vector art illustration

Set of advertising, promo and printing vector line icons isolated on a white background vector art illustration

Vector set of human eye color range. Brown, hazel, amber, blue, green, and gray eye colors. Illustration of the main and most common eye colors. vector art illustration

Vector math graph or chart with blue grid and four coordinate plane quadrants and origin. Cartesian coordinate plane with x and y axis. vector art illustration

Vector illustration of color wheel isolated on white. Primary colors, secondary colors, tertiary colors. vector art illustration

Vector scientific illustration of light reflection, absorption, and transmission. Incoming rays and different physical types of surfaces – mirror, rough, and transparent isolated on white background. vector art illustration

Vector editable outdoor wayfinding map of campus or floor plan with a road with fields for logos, titles isolated on white. Suitable as a map of campus, hospital, medical center, event, festival, etc. vector art illustration

Vector graph or chart of direct current and alternating current. Direct current – voltage is constant. Alternating current – voltage periodically changes. vector art illustration

Vector editable floor plan with fields for logos or titles isolated on a white background. Suitable as a map of campus, office, production hall, festival, shopping mall, workplace, event, and more. vector art illustration

Vector editable outdoor wayfinding map or festival map template isolated on white. Suitable as a map of event or festival. vector art illustration

Vector set of icons or symbols of eyes with color blindness or colorblindness isolated on white. Normal vision, protanopia, tritanopia, deuteranopia, achromatopsia. vector art illustration

Vector realistic illustration of an amber glass dropper bottle isolated on white. Two realistic bottles – transparent and with blank label. Mock-up or template. vector art illustration

Vector infographics of bit and color depth. The maximum number of colors that can be displayed is 8 bits per channel, 24 bits per rgb image. 256 colors per channel, over 16 million colors in total. vector art illustration

Vector diagram with changing states of matter, three states of matter with different molecular arrangements – solid, liquid, gas. Freezing, melting, condensation, evaporation, sublimation, deposition. vector art illustration

Thermal expansion of solids and liquids. The tendency of materials to change their volume in response to a change in temperature. Particle or atom movement and vibration. Expansion and contraction. vector art illustration

Vector ball-and-stick model of chemical substance. Green icon of chlorine molecule Cl2 with one single bond. Structural formula of chlorine halogen is isolated on a white backgroud. vector art illustration

Set of polysaccharides –cellulose, amylose, amylopectin, and glycogen. Starch components amylose and amylopectin, natural carbohydrates. vector art illustration

Vector set of empty fabric polyester bracelet or wristband with plastic safety lock in the most common colors. Hand entrance festival bracelet isolated on white. Template or mock up for identification vector art illustration

Vector cmyk ink cartridges – cyan, magenta, yellow and black colors vector art illustration

Vector graph or chart with comparison of simple interest and compound interest isolated on white. Time is money. vector art illustration

Understanding and interpreting boxplots, vector statistical diagram isolated on a white. Box plot, whisker plot explanation. vector art illustration

Vector set of silhouettes of racquet sports vector art illustration

Pie chart, pie graph – composition of air on the earth. Nitrogen, oxygen, other gases such as carbon dioxide and argon. vector art illustration

Vector three-dimensional hand drawn chemical symbol of iron or ferrum with an abbreviation Fe from the periodic table of the elements isolated on a white background. vector art illustration

Vector set of realistic glass laboratory empty and water filled chemical glassware isolated on white. Laboratory glassware, chemical laboratory. vector art illustration

Vector symbol of hydrogen sulfide or sulphuretted which consists from from hydrogen and sulphur on the background from connected molecules vector art illustration

Vector line or outline championship single elimination tournament bracket or tree diagram isolated on white. Fields for 32 players or teams, 16 from each side. It is suitable for all kinds of sports. vector art illustration

Vector symbol of titanium dioxide which is called titanium white on the background from connected molecules vector art illustration

Vector chemical icon of types of ions. Neutral atom, cation, and anion. Cation – positive charge, more protons. Anion – negative charge and more electrons. vector art illustration

Caffein chemical formula isolated. Vector black icon. Coffee concept, chemistry. vector art illustration

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