Science Design

Description: This scientific diagram shows Joule's paddle-wheel experiment: a falling weight turns paddles in a water tank while a thermometer rises, above 1 cal = 4.184 J, on a deep dark background. In 1845 James Prescott Joule showed that mechanical work turns into a precise amount of heat, using a falling weight to stir water. His result helped establish the conservation of energy; the unit of energy, the joule, is named after him. A gift idea for physicists, engineers and physics students, and a striking addition to a study, lab or office wall.

Description: A detailed scientific illustration of a bar chart of maternal mortality at Vienna General Hospital in 1847, falling from 18.3% to about 1–2% after chlorine handwashing was introduced, set against a deep dark background. In 1847 the Hungarian physician Ignaz Semmelweis required doctors to wash their hands with chlorinated lime before examining patients. Deaths from puerperal fever fell dramatically, a founding moment of infection control. A gift idea for physicians, nurses and medical students, and a thoughtful piece for a practice, office or study.

Description: Rendered on a deep dark background, this artwork presents a homeostasis loop of sensor, control center and effector around a 37 °C set point. The French physiologist Claude Bernard (1813–1878) founded experimental medicine and introduced the idea of the milieu intérieur: the stability of the internal environment is the condition of free and independent life. Made for doctors, nurses, medical students and everyone who works in healthcare, it suits a clinic, consulting room, study or student room.

Description: This scientific diagram shows a key whose bit is made of colorful rock strata, above the motto The Present Is the Key to the Past in classic serif capitals, on a deep dark background. In Principles of Geology (1830), Charles Lyell argued that the processes acting today, erosion, sedimentation and volcanism, explain the history of the Earth. His uniformitarianism deeply influenced Darwin. A gift idea for geology lovers, geography teachers and earth-science students, and a fitting piece for a study or office wall.

Description: A detailed scientific illustration of a Carnot cycle on a pressure-volume diagram, with its hot and cold isotherms T_H and T_C and two adiabats, above the maximum efficiency η = 1 − Tc/Th, set against a deep dark background. In 1824 the French engineer Sadi Carnot studied the efficiency of heat engines and showed that it is limited by the temperatures of the hot and cold sources. His work laid the foundation of thermodynamics. A gift idea for mechanical engineers, makers and engineering students, and a fitting piece for a workshop, office or study.

Description: Rendered on a deep dark background, this artwork presents three columns of gears from Babbage's Difference Engine, holding the values of n² + n + 41 and their first and second differences, with the crank on the side. Charles Babbage designed the Difference Engine in 1822 to compute mathematical tables mechanically using the method of finite differences. His later Analytical Engine anticipated the modern computer. Made for developers, computer scientists and anyone who speaks the language of machines, it suits a home office, dev desk or study.

Description: This scientific diagram shows a bar magnet moving into a coil connected to a galvanometer whose needle swings, above Faraday's law of induction ε = −dΦ/dt, on a deep dark background. In 1831 Michael Faraday discovered electromagnetic induction: a changing magnetic field produces an electric current. This principle powers generators, transformers and the entire electrical grid. Made for physicists, physics teachers and anyone curious about the laws of nature, it suits a lab, classroom, study or home office.

Description: A detailed scientific illustration of a wire carrying a current over a compass whose needle swings away from north, the experiment that linked electricity and magnetism, set against a deep dark background. In 1820 the Danish physicist Hans Christian Ørsted noticed that an electric current deflects a nearby compass needle. This discovery revealed the link between electricity and magnetism and launched electromagnetism. A gift idea for physicists, engineers and physics students, and a striking addition to a study, lab or office wall.

Description: Rendered on a deep dark background, this artwork presents three equal boxes of hydrogen, nitrogen and oxygen molecules, each holding the same number of molecules, above the Avogadro constant N_A = 6.022 × 10²³ mol⁻¹. In 1811 Amedeo Avogadro proposed that equal volumes of gas at the same temperature and pressure contain the same number of molecules. The Avogadro constant defines the mole, the chemist's unit of amount. A gift idea for chemists, chemistry students and science teachers, and a fitting piece for a lab, study or office wall.

Description: This scientific diagram shows a straight wire carrying a current I, circled by three rings of magnetic field B with arrows, above Ampère's law ∮ B · dl = μ₀ I, on a deep dark background. André-Marie Ampère (1775–1836) founded electrodynamics by showing how electric currents create magnetic fields. The unit of electric current, the ampere, is named in his honor. Made for electricians, electrical engineers and anyone powered by curiosity, it suits a workshop, lab, study or office.

Description: Rendered on a deep dark background, this artwork presents four sine harmonics stacked above a square wave rebuilt from their sum, with the series f(x) = 4/π Σ sin(nx)/n for n = 1, 3, 5, 7. In 1822 Joseph Fourier showed that any periodic signal can be written as a sum of sines and cosines. Fourier analysis now underpins audio, image compression, telecommunications and much of modern engineering. Made for engineers, inventors and anyone who loves to understand how things work, it suits a workshop, office or study.

Description: Rendered on a deep dark background, this artwork presents a starry sky above the arc of the great meridian sextant of Samarkand, a sight line to a bright star, and a band of mosaic tiles. The prince and astronomer Ulugh Beg (1394–1449) built a great observatory in Samarkand. His Zij-i Sultani catalogued 1,018 stars, the most accurate star catalogue since Ptolemy. A gift idea for astronomy lovers, space enthusiasts and students of the cosmos, and a fitting piece for a study, bedroom or office.

Description: This scientific diagram shows parallel rays of light converging through a convex lens to its focal point F, above a Latin motto on experience and knowledge, on a deep dark background. In his Opus Majus of 1267, the English friar Roger Bacon argued that without experience nothing can be sufficiently known. He studied lenses and optics and is seen as an early champion of experimental science. A gift idea for philosophy and history-of-science enthusiasts, and a fitting piece for a library corner, study or office.

Description: A detailed scientific illustration of stylized lungs above a two-chamber heart, with blood leaving the right side for the lungs and returning to the left side, set against a deep dark background. In 1242 the physician Ibn al-Nafis, working in Cairo, described the pulmonary circulation: blood passes from the right side of the heart through the lungs to the left side, more than three centuries before Harvey. A gift idea for physicians, nurses and medical students, and a thoughtful piece for a practice, office or study.

Description: Rendered on a deep dark background, this artwork presents a large circle with a smaller circle of half its radius shown in four positions, a point on the small circle moving back and forth along a straight diameter. In 1247 the Persian astronomer Nasir al-Din al-Tusi described the Tusi couple, which turns circular motion into straight-line motion. The device later appeared in the work of Copernicus. Made for math teachers, mathematicians and students who love an elegant proof, it brings classic mathematics to a classroom, study or home office.

Description: This scientific diagram shows a parabola y = x² and a circle intersecting on a coordinate grid, the intersection giving the root x = 2 of the cubic equation x³ + x = 10, on a deep dark background. The Persian mathematician and poet Omar Khayyam (1048–1131) solved cubic equations geometrically by intersecting conic sections, a remarkable step between Greek geometry and modern algebra. A gift idea for mathematicians, math teachers and engineers, and a quiet statement piece for a study, classroom or office wall.

Description: A detailed scientific illustration of a compass rose with a magnetic needle offset from true north by the angle δ, showing that true north is not magnetic north, set against a deep dark background. In his Dream Pool Essays of 1088, the Chinese scholar Shen Kuo gave the first known description of the magnetic needle compass and noted that it does not point exactly to true north: magnetic declination. A gift idea for geology lovers, geography teachers and earth-science students, and a fitting piece for a study or office wall.

Description: Rendered on a deep dark background, this artwork presents an open book decorated with eight-pointed geometric stars, beneath a pulse trace. Ibn Sina (Avicenna, 980–1037) completed his Canon of Medicine in 1025. Synthesizing Greek, Persian and Arabic knowledge, it served as a medical textbook in Europe and the Islamic world for six centuries. Made for doctors, nurses, medical students and everyone who works in healthcare, it suits a clinic, consulting room, study or student room.

Description: This scientific diagram shows a mountain on the curve of the Earth with the line of sight to the horizon, the dip angle α, the radius R and the formula R = h cos α / (1 − cos α), on a deep dark background. Around 1020, the Persian scholar Al-Biruni measured the radius of the Earth from the top of a mountain near Nandana by observing the dip of the horizon, an ingenious method based on trigonometry. Made for geologists, geographers and anyone who reads the story written in rocks and maps, it suits a study, classroom or office.

Description: A detailed scientific illustration of a framed plate of six surgical instruments, scalpel, forceps, hook, scissors, cautery and probe, inspired by the illustrated pages of Al-Tasrif, set against a deep dark background. Al-Zahrawi (Abulcasis, 936–1013), a physician of Córdoba, wrote Al-Tasrif, whose surgical volume describes and illustrates more than two hundred instruments. Translated into Latin, it was taught in Europe for centuries. A gift idea for physicians, nurses and medical students, and a thoughtful piece for a practice, office or study.

Description: Rendered on a deep dark background, this artwork presents a smallpox virion and a spiked measles virion side by side, separated by a not-equal sign. Around 910, the Persian physician Al-Razi (Rhazes) wrote the first known clinical description distinguishing smallpox from measles. His treatise is a landmark in the history of differential diagnosis. Made for doctors, nurses, medical students and everyone who works in healthcare, it suits a clinic, consulting room, study or student room.

Description: This scientific diagram shows an astrolabe-style dial ringed by the phases of the Moon, with 365 days and 5 h 46 m 24 s at its center, the measurement of the tropical year, on a deep dark background. The astronomer Al-Battani (c. 858–929), working in Raqqa, measured the length of the solar year as 365 days, 5 hours, 46 minutes and 24 seconds. His precise tables were later cited by Copernicus. Made for astronomers, stargazers and anyone who looks up at the night sky with wonder, it suits a study, bedroom or observatory corner.

Description: A detailed scientific illustration of a copper alembic heated over a furnace, its vapor rising, condensing in the beak and dripping into a glass receiver, set against a deep dark background. Jabir ibn Hayyan, the founding figure of Arabic alchemy in the eighth century, is credited with describing laboratory techniques such as distillation and crystallization. The word alembic itself comes from the Arabic al-inbiq. Made for chemists, chemistry teachers and anyone who loves the lab, it suits a laboratory, classroom, study or home office.

Description: Rendered on a deep dark background, this artwork presents a circle with its diameter of 20,000 and circumference of 62,832, ringed by petals, above Aryabhata's approximation π ≈ 62,832 / 20,000 = 3.1416. In his Aryabhatiya of 499 AD, the Indian mathematician and astronomer Aryabhata gave the value of pi as 62,832 divided by 20,000, or 3.1416, an exceptional precision for his time. Made for math teachers, mathematicians and students who love an elegant proof, it brings classic mathematics to a classroom, study or home office.

Description: Rendered on a deep dark background, this artwork presents a damped oscillating signal f(t) transformed into its frequency response F(s), with the integral F(s) = ∫₀^∞ f(t) e^(−st) dt in bold type. Pierre-Simon Laplace (1749–1827) developed the integral transform that bears his name. Engineers use it every day to solve differential equations and analyze circuits, control systems and signals. A gift idea for mechanical engineers, makers and engineering students, and a fitting piece for a workshop, office or study.

Description: This scientific diagram shows a brick-shaped cowpox virus particle inside a medallion, above the timeline 1796 to 1980: the story behind the word vaccine, on a deep dark background. In 1796 Edward Jenner protected a boy against smallpox using material from cowpox, vaccinia, from the Latin vacca, cow. Vaccination spread worldwide, and smallpox was declared eradicated in 1980. A gift idea for physicians, nurses and medical students, and a thoughtful piece for a practice, office or study.

Description: A detailed scientific illustration of a tall stack of alternating zinc, brine and copper discs wired to a bright spark, the voltaic pile of 1800, set against a deep dark background. In 1800 Alessandro Volta stacked discs of zinc and copper separated by cardboard soaked in salt water and obtained a steady electric current: the first battery. The unit of voltage, the volt, honors him. A gift idea for engineers, makers and electronics students, and a fitting piece for a workshop, desk area or study.

Description: Rendered on a deep dark background, this artwork presents a balloon decorated with gold bands, stars and dots in the spirit of 1783, with its wicker gondola, above the density relation ρ hot air < ρ cold air. In 1783 the brothers Joseph and Étienne Montgolfier launched a hot-air balloon at Annonay, and later that year it carried the first people into the sky. Hot air rises because it is less dense than cold air. A gift idea for pilots, aviation fans and aerospace students, and a fitting piece for a study or office wall.

Description: This scientific diagram shows a color spectrum with an extra band marked IR beyond the red, and three thermometers showing the temperature rising highest past the visible light, on a deep dark background. In 1800 William Herschel placed thermometers in the colors of a spectrum and found that the temperature was highest beyond the red end, where no light was visible. He had discovered infrared radiation. A gift idea for physicists, engineers and physics students, and a striking addition to a study, lab or office wall.

Description: A detailed scientific illustration of the Sun, the Earth and the five Lagrange points L1 to L5, with the equilateral triangles that locate L4 and L5, set against a deep dark background. In 1772 Joseph-Louis Lagrange found five points where a small body can stay in balance between two large ones. Today space telescopes are parked near the Sun–Earth L2 point. A gift idea for astronomy lovers, space enthusiasts and students of the cosmos, and a fitting piece for a study, bedroom or office.

Description: Rendered on a deep dark background, this artwork presents Watt's flyball governor, its spinning balls rising with speed to regulate the engine, above the definition of the watt, 1 W = 1 J/s. James Watt (1736–1819) transformed the steam engine with the separate condenser and adopted the centrifugal governor to control its speed automatically. The unit of power, the watt, is named after him. Made for engineers, inventors and anyone who loves to understand how things work, it suits a workshop, office or study.

Description: This scientific diagram shows sunlight focused by a burning lens onto mercury oxide under a glass bell jar, releasing bubbles of O₂, above the equation 2HgO → 2Hg + O₂, on a deep dark background. In 1774 Joseph Priestley focused sunlight on mercury oxide and collected a gas in which flames burned brightly: oxygen. He also invented carbonated water by dissolving carbon dioxide in water. Made for chemists, chemistry teachers and anyone who loves the lab, it suits a laboratory, classroom, study or home office.

Description: A detailed scientific illustration of a torsion balance with small spheres attracted by large lead spheres, above Newton's law F = G Mm / r², set against a deep dark background. In 1798 Henry Cavendish used a delicate torsion balance to measure the tiny gravitational pull between lead spheres. From it he calculated the density of the Earth, about 5.45 times that of water. Made for physicists, physics teachers and anyone curious about the laws of nature, it suits a lab, classroom, study or home office.

Description: Rendered on a deep dark background, this artwork presents a cross-section of tilted, near-vertical rock strata cut by an erosion surface and covered by younger horizontal layers. At Siccar Point in Scotland in 1788, James Hutton saw ancient vertical strata overlain by younger horizontal ones. He understood that the Earth is immensely old, shaped by slow processes over deep time. Made for geologists, geographers and anyone who reads the story written in rocks and maps, it suits a study, classroom or office.

Description: This scientific diagram shows needles scattered over parallel lines, those crossing a line highlighted, above the probability formula P = 2l / πt, on a deep dark background. In 1777 the naturalist Georges-Louis Leclerc de Buffon calculated the probability that a needle dropped on a lined floor crosses a line. The answer involves pi, so random throws can be used to estimate it. A gift idea for mathematicians, math teachers and engineers, and a quiet statement piece for a study, classroom or office wall.

Description: A detailed scientific illustration of the twinflower Linnaea borealis, a slender stem forking into two nodding bells, above its Latin name in italics, genus plus species, set against a deep dark background. Carl Linnaeus (1707–1778) created binomial nomenclature, the two-part Latin naming system used for every species, from Homo sapiens to Linnaea borealis, the little twinflower named in his honor. Made for biologists, life science teachers and anyone fascinated by living things, it suits a lab, classroom, study or home office.