clear answers for common questions
Science and Engineering (4993 Articles)
What is Comparative Genomics?
What is a Mobius Strip?
What is a Robofly?
What are Some Uses for Carbon Nanotubes?
What is the Traveling Salesman Problem?
What is Laser Scanning?
What is an Ultramicrotome?
What is a PC Oscilloscope?
What is Grey Noise?
What is Psychrometrics?
What is Set Theory?
What is Pentachlorophenol?
What is Electrostatic Discharge (ESD)?
What is the Spitzer Space Telescope?
What is a Forensic Science Laboratory?
What is Thermogravimetric Analysis?
What is a Fujita Scale?
What are the Best Methods for Glucose Determination?
What are Some Animals That Have Been Trapped in Amber?
What are Some Prominent Features of Jupiter?
In Chemistry, what is the Periodic Law?
What is an Arch Truss?
What is Canopus?
What are Prime Numbers?
Who is John Nash?
What is Biological Warfare?
What is a Transgene?
What is the Risk of a Genetically Engineered "Superbug"?
What Is an Idiotype?
What Is Microbial Pathogenesis?
What Is Flow Stress?
What Is a Transmissometer?
What Is Water Resources Engineering?
What Is a Function Generator?
What Is Thermometry?
What Is Forensic Medicine?
What Is an Alidade?
What Is a Plate Girder Bridge?
What Is Sigma Notation?
What Is Pendulum Physics?
What Is a Dissociation Constant?
What Is Electrode Potential?
What Is Toluene?
How Is the Viscosity of Liquids Found?
What is Heat of Fusion?
What Is a Beam Compass?
What Is Design Pressure?
What Is Abiotic Stress?
What Is Bearing Capacity?
What Is Induction Heating?
What Is a Kilogram?
What is a Fumarole?
What Is the Tonne of Oil Equivalent?
What is Special Relativity?
Why do Bridges Freeze Before Roads?
What is Coordination Number?
What is a Histogram?
Which Came First, the Chicken or the Egg?
What is Hafnium?
What are Introns?
What are Conodonts?
What is a Cave Bear?
What is Passive Solar?
What is Neptunium?
What Is a Biosignature?
What is a Ligand?
What is Enceladus?
What Was the First Space Station?
What are Trace Fossils?
What Was Mir?
Why Does Freshly Cut Grass Smell Good?
How Many Calories are There in a Gallon of Gasoline?
What is Voyager 2?
What are Nautiloids?
What are the Different Methods of Groundwater Cleanup?
Are Volcanoes Used as Sources of Energy?
What are Higgs Particles?
What is a Footbridge?
What are Insects?
What is Alpha Decay?
Is Glacier Ice Different from Regular Ice?
What is RNA Interference?
How Much Energy Can Be Produced from Natural Gas?
What Are the Different Archaeological Methods?
What is a Medicinal Chemist?
What is Dimethyl Ether?
What are Some Properties of Zero?
What is the Chromosphere?
What Were Some Successful Futurist Predictions?
What is a Bubble Chamber?
What is the Difference Between Microevolution and Macroevolution?
What is Superlubricity?
What is Homo Erectus?
How Are the Names of Elements on the Periodic Table Chosen?
What are Some Herbivore Adaptations to Plant Defense?
What Are the Different Uses of Boron?
What Is Beam Buckling?
What Is Supersymmetry?
What Is a Choropleth Map?
What Is the Birthday Paradox?
What is a Cutoff Frequency?
What Is a Diopter?
What Are B-Lymphocytes?
What Is a Seiche?
What Is a Genome Database?
What Is Trilateration?
What Is the Ubiquitin System?
What Is Cytogenetics?
What is Fault Analysis?
What Is Multicomponent Distillation?
What Is a Supersaturated Solution?
What Is a Gas Manometer?
What is Truss Load?
What is a Quantum Dot?
What Is the Natural Logarithm?
What are Milliseconds?
What Is Pattern Recognition?
What is Chromatic Aberration?
What is a Bacterial Plasmid?
What are Lunar Phases?
What is Lawrencium?
What Is a Biconical Antenna?
What is Ejecta?
What is the Strong Nuclear Force?
What are Some Subzero Temperatures?
What is a Quark Star?
What is the Philadelphia Experiment?
What are Skyfish?
What are Latitude and Longitude?
What is the Phanerozoic Eon?
What is the Proterozoic Eon?
What are the Different Types of Optical Microscopes?
How Much Oil and Coal are Left?
What is a Geiger Counter?
What is a Negawatt?
What is an EMF Meter?
What are the Major Groups of Reptile?
What is the Cryogenian Period?
What is a Binary Star System?
What is a Seismogram?
What is Alpha Centauri?
What is the Casimir Effect?
What is a Polynomial?
What is a Particle Accelerator?
What is Europium?
What Is Tangential Acceleration?
What is a Large Igneous Province?
What is Medical Neuroscience?
What is a Planetarium?
What is a Viral Vector?
What is Acidic Dye?
What is the Global Warming Effect?
What is the Theoretical Yield?
What are Empirical Formulas?
What is a Digital Microscope Camera?
What Is Autocorrelation?
In Genetics, what is a Linkage Map?
What Are the Different Methods of Protein Concentration Determination?
What is Programmed Cell Death?
What is a Climate Diagram?
What is a Milliwatt?
Is Infrared Light Visible?
What is the Radiation Belt?
What is Transportation Engineering?
What are Cirrostratus Clouds?
What Are the Different Types of Sulfuric Acid Tests?
What is a Spherometer?
What Is Hexavalent Chromium?
How do I Find Mechanical Engineer Jobs?
How do I Know Which is Better, Analog or Digital?
What is Functional Ecology?
What Are Nitrites?
What is a Micromanipulator?
What Is a Magnetic Cloud?
How Was Synthetic Dye Discovered?
What Is RNA Gel Electrophoresis?
How Should I Prepare for Snow Storms?
What Is Selection Bias?
What Is a Basic Salt?
What Is a Zymosan?
What Is a Process Furnace?
What Is Mass Physics?
What is Cryobiology?
What Is Harmonic Motion?
What is Iontophoresis?
What Is a Tension Test?
What Are the Properties of Calcium?
What is a Fascine?
What is a Homozygote?
What Factors Affect a Biochemist Salary?
What Is Sulfate Precipitation?
What Is RNA Analysis?
What is Ingot Iron?
What Is Methylation?
What Is the Collision Theory?
What Is the Kronecker Delta?
What Is Zone Refining?
What Is Pareto's Law?
Did Giant Mushrooms Cover the Earth before Trees?
What Is an Atomic Orbital?
What Is Umbelliferone?
What is Poisson's Ratio?
What is Chlorine Dioxide?
What is an Aerial Survey?
In Genetics, What Is Complementation?
Can You Taste with a Dry Tongue?
What Is Cognitive Neurology?
What Is the Primary Cortex?
What Is Hydrophilicity?
Does the Dark Side of the Moon Ever Get Sunlight?
How Energy Efficient Are Modern Buildings?
What Is Engineering Geology?
What Is the Angle of Depression?
What Is a Mitochondrial Genome?
What is the Triple-Alpha Process?
What is a Pilot Balloon?
What is the Coriolis Effect?
What is Coordinate Paper?
What are Nuclides?
What are Some Devonian Organisms?
What are Some Permian Organisms?
What is a Contour Map?
What is a Check Dam?
What are Velvet Worms?
What is a Stellar Stream?
What are the Main Categories of Organism?
What is Indium?
What is Ununoctium?
What is the Landkreuzer P. 1000 Ratte?
What is a Plutoid?
What are Some Antarctic Animals?
What is an Aerobic System?
What do Nanotechnology Companies do?
What is an Enantiomer?
What is Erbium?
What is Meitnerium?
What is a Submerged Continent?
What are Some Failed Technologies?
What are Nicotinic Receptors?
What is Raw Water?
What are Trilobites?
What is Radiometric Dating?
What are Microbial Mats?
How did the Solar System Form?
What is an Exocet Missile?
What is Extrapolate?
What is the Celestial Sphere?
What Is Flow Cytometry?
What Is Solar Insolation?
What Is a Digital Cable Signal?
What is the Largest Insect That Ever Lived?
How is Artificial Snow Made?
How are Scientists Able to Artificially Synthesize a Virus?
What is a Brocken Spectre?
What is Flash Point?
What is a Reducing Agent?
What is False Memory Syndrome?
What is a Ribonucleic Acid?
What is Ferroelectricity?
What is Biogas Production?
What are Some Forms of Mimicry in Nature?
What are Causes of Global Warming?
What Types of Space Colonies Have Been Proposed?
What is the Endolithic Biome?
What is Hassium?
What is Terbium?
What is Penetration Depth?
What does DNA Testing Tell Us About Mankind's Early History?
What are Some Prominent Features of Mars?
How are Different Animals Related?
What are Some Types of Body Flora?
What is the Aquatic Ape Hypothesis?
What are Hexapods?
What are Gravity Waves?
What is Electrical Mechanical Energy?
What are Some Recent Advances in Artificial Intelligence?
How does Matter Transfer Thermal Energy?
What are Basal Amniotes?
What Is a Canonical Form?
What Is a Concentration Cell?
What Is a Bacterial Biofilm?
What Is Ethylene Biosynthesis?
What Is a Short Circuit?
What Is Ostwald Ripening?
What Is Cadmium Sulfide?
What Is a Primary Radar?
What Is Heat Transfer Fluid?
What is Relative Velocity?
What Is an Integrating Sphere?
What Is Electromagnetic Simulation?
What Is Acetoacetic Ester Synthesis?
What Is a Deck Bridge?
What is Ultraviolet Radiation?
How Can I Observe Microscopic Animals?
What Is Truss Analysis?
What Is the Quantum Hall Effect?
What Is the Crisscross Method?
What Is a Soxhlet Extractor?
What Is a Net Ionic Equation?
What Is a Sex Chromosome?
What is Adaptive Control?
What is SYBR Green&Reg;?
What Is Microscope Photography?
How are Different Groups of Arthropods Related?
What are Control Rods?
What is a Microtubule?
What are Some Neogene Organisms?
What is the Azolla Event?
What is a Methane Digester?
What are Nanobes?
What are out-Of-Place Artifacts (OOPArts)?
What is Prussian Blue?
How do I Measure my Carbon Footprint?
What are the Different Methods of Drainage Installation?
What is an Alcoholometer?
What Was the Enigma Machine?
What is Nanopaper?
What is Project Plowshare?
What is Dickinsonia?
What is the Ediacaran Period?
What is Lithium Carbonate?
How Much of an Astronaut's Time is Actually Spent in Space?
What is Thermal Science?
What are Some Significant Recent Advances in Robotics?
What is a Seismic Wave?
What is Biogas Fuel?
What is the Poincaré Conjecture?
What is a Microsporum?
What is Diamondoid Mechanosynthesis (DMS)?
What is the Palomares Hydrogen Bomb Incident?
What Happened to the Tacoma Narrows Bridge?
What is a Space Plane?
What is Electromagnetic Light?
What are Some Prominent Continents That No Longer Exist?
What Was the Devonian Period?
What is the Content of Lunar Soil?
What is a Gene Gun?
What is a Sonic Anemometer?
What is Rigel?
What is the Axis of Symmetry?
What is a Tropical Cyclone?
What is the Rare Earth Hypothesis?
What is the Main Cortex Function?
What is the Safety Record of the US Space Program?
What Is an Equation of State?
What Is Heat Capacity?
What is Information Science?
What is a Cytokine Assay?
What Is Boiling Point Elevation?
What Is Gas Chromatography?
What is a Weak Electrolyte?
What Is Reduced Mass?
What is the Bulk Modulus?
What is Rotational Energy?
What Is Instrumentation Control Engineering?
What Is Decontamination?
What is Transfection?
What Is a Fluidized Bed?
What Is a Lone Pair?
What Is a Snow Pillow?
What Is a Synoptic Chart?
What Is Absorptivity?
What Is a Sampling Frame?
What is an Environmental Site Assessment?
What is an Anechoic Chamber?
How does a Xerox&Reg; Copier Work?
What are Some Common Cave Features?
What is Information Theory?
What is a Prince Rupert's Drop?
What is a Neuroscience Lab?
What is Amphicoelias Fragillimus?
What Were the Largest Dinosaurs Ever?
What is the Long Tail?
What is a Dark Field Microscope?
What is Order Carnivora?
What Is the Becquerel?
What is the Spanish Flu?
What Is Factor Analysis?
What are Some Prominent Features of Venus?
Is There Anything More Transparent Than Glass?
What is the Polynesian Triangle?
What is Ferulic Acid?
What Is Fractionation?
What is a Mandlebrot Set?
What is Nanofabrication?
What is Mepiform&Reg;?
What are Membrane Lipids?
What are Nanoplastics?
What is the Moiré Effect?
What is a Furlong?
What is Fuzzy Logic?
What is a Cytokine Receptor?
What is the W54 Nuclear Warhead?
What are Restriction Enzymes?
What is the Triangulum Galaxy?
What is a Box Girder Bridge?
In Chemistry, What Are Sigma Bonds?
What is Recombinant Cloning?
What are Some Cenozoic Animals?
What is an Engineering Scale?
What is the First Law of Thermodynamics?
What Are the Best Tips for Compound Microscope Use?
What Is Chemical Kinetics?
What Is an Enamine?
What is Chemical Process Design?
What Are the Different Types of Archaeological Services?
What is Euler's Formula?
What are Geometric Isomers?
What Is Deconvolution?
What Is an Isotope Ratio Mass Spectrometer?
What Are Standard Deviation Percentiles?
What is Antigen Binding?
What is an Electrostatic Field?
What Is Concentrated Sulfuric Acid?
What Is Sliding Friction?
What Is the Connection between Uranium and Radon?
What Is a Zener Diode?
What is the Attenuation Coefficient?
What Is Eelgrass?
What Is a Coastal Plain?
What Is Tetramethylethylenediamine?
What Is Military Archaeology?
What Is Bathymetry?
What Is a Squid Magnetometer?
What is Formation Geology?
What Is a Monopulse Radar?
What Is a Colloid Solution?
What Is the Effective Nuclear Charge?
What Are the Properties of Silicon?
What Are the Different Types of Superconductor Technologies?
What Are Ionic Compounds?
Has Anyone Won Two or More Nobel Prizes?
How do I Choose the Best Renewable Energy Options?
What Is an Axial Tilt?
What is Chemical Wastewater Treatment?
What is Coriolis Force?
What are Baryons?
What Is the World's Smallest Musical Instrument?
What Is an Ion Exchange?
What is Rheology?
What is the Difference Between Analog and Digital Signals?
How Do I Choose the Best Microscope Slides?
How Was Phosphorus Discovered?
What Is Allele Frequency?
What is Gel Electrophoresis?
What Are Geosynthetics?
Does Water Drain in Different Directions in the Northern and Southern Hemispheres?
What Is a Radiosonde?
What Are the Different Types of Mechanical Engineering Technology?
What Is a Service Module?
What Is Integral Calculus?
What Is Length Contraction?
What Is a Van De Graaff Generator?
What Is Absolute Temperature?
Can Anything Be Colder than Absolute Zero?
What are Stereoisomers?
What Is the Heisenberg Uncertainty Principle?
What Is the Distance of One Astronomical Unit?
What are Some Predictions for Future Climate Change?
What is a Chondrite?
What is a Circular Orbit?
What are Physics Forces?
What Is an Autoradiograph?
What are the World’s Largest Prehistoric Construction Projects?
What Were Some of the Earliest Complex Animals Known?
What is a Particle Beam?
What is Cell Cycle Regulation?
What is a Phase Contrast Microscope?
What is Io?
What are Some Carboniferous Organisms?
What is Eris?
Why does the Genome Size Differ in Different Organisms?
What are the Major Groups of Insects?
What is the History of the Microscope?
What are the Different Generations of Solar Cells?
What are Eurypterids?
What is the Genus Homo?
What are Some Futuristic Weapons?
Who is Richard Dawkins?
What is a Cloud Chamber?
What is a Vector Field?
What is the Photosphere?
What is a Quadrangle?
What is Sugar Cane Ethanol?
What is Bohrium?
What is a Contrast Microscope?
What is Aeroelasticity?
In Biology, what is the Central Dogma?
What Was the Manhattan Project?
What is the Direction of Mars Research?
What is Wind Potential Energy?
What are the Different Methods of Fingerprint Detection?
What is Project Gemini?
What are Some of the Tallest Structures on Earth?
What is Aeroponics?
What is the Recent African Origin Model?
Where can I Find Meteorites?
What Is a Quantitative Titration?
What Is a Diesel Cycle?
What Is an X-Ray Diffractometer?
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