Simulation list Return to main menu HTML5 Simulations Updated 4/3/2019 - 206 simulations of mine plus 4 others Beyond physics at the Statue of Liberty Climate Change Vector Addition Motion in 1 dimension Motion in 2 dimensions Forces Circular motion Momentum and Energy Gravitation Rotation Harmonic Motion Fluids Heat and Thermodynamics Waves Electric charge and electric field Electric circuits Magnetism Electromagnetic induction AC Circuits Electromagnetic waves Geometrical Optics - Reflection and mirrors Geometrical Optics - Refraction and lenses Interference and Diffraction Quantum and Nuclear physics Advanced (or other) topics External links The counter has been running on this page since 8-8-2018.
Should we teach kids about porn’s harms? Yes, and here’s how Image: Bigstock Warning: the following article contains graphic descriptions of pornographic material. Sean Covey, son of the famous Stephen Covey, has written a terrific book for teens that I regularly recommend to parents: The 6 Most Important Decisions You’ll Ever Make. In the chapter on addictions, Covey calls pornography “the addiction of the 21st Century.” The sexual revolution normalized pornography. When do kids start watching porn? Unfortunately, exposure to Internet pornography is happening at younger and younger ages. If you have an elementary school-age child, I encourage you to read, together, a picture book titled Good Pictures Bad Pictures: Porn-Proofing Today’s Young Kids by Kristen Jenson and Gail Poyner. The authors acknowledge that good parents want to protect their children’s innocence, but they point out, “Children all over the world begin viewing hard-core Internet pornography long before their parents even consider discussing its dangers.” What does internet porn show?
/wp-content/uploads/2015/08/dino.txt % (Header) (Generated by gcodetools from Inkscape.) (Using default header. To add your own header create file "header" in the output dir.) M3 (Header end.) Accueil - Fête de la science Physics Simulations at The Physics Classroom Welcome to Physics Interactives! This section of our website features a collection of HTML5 interactive pages that allow a user to explore a physics concept. Some Interactives are simulations that allow a user to manipulate an environment and observe the effect of changes in variables upon the simulation. Other Interactives are skill building exercises in which a user practices a skill that is crucial to learning some aspect of physics. And still other Interactives provide game-like environments that require the user to use a physics concept to meet a challenge. The Interactives are intended to be used by the individual student or learner who is attempting to further understand the concept or by a teacher-led classroom as part of a lesson or homework assignment. Interactives are organized by topic. Topics: 1-Dimensional Kinematics Match an animated motion to a verbal description or a graphical description in the Name That Motion and Graph That Motion Interactives. Newton's Laws of Motion
“An additional reason to abandon learning styles” – teachers and pupils do not agree on the pupils’ preferred learning style By Christian Jarrett “Learning styles” – there can be few ideas that have created such a stark disconnect between the experts on the ground and the evidence published in scholarly journals. Endorsed by the overwhelming majority of teachers, yet dismissed by most psychologists and educational neuroscientists as a “neuromyth”, the basis of learning styles is that people learn better when taught via their preferred learning modality, usually (but not always) described as either visual, auditory or kinaesthetic. Many studies have already uncovered serious problems with the learning styles concept, such as that measures of learning styles are invalid and that students do not in fact learn better via their preferred modality. The study was simple enough – nearly 200 fifth- and sixth-grade pupils (average age 11 years) from five schools chose which was their preferred learning style out of visual, auditory or kinaesthetic. Image via JoanDragonfly / Flickr
CNC Dual Arm Plotter : 11 Steps The blue "arms" L in the above diagram may be regarded as a 2DOF (degrees of freedom) robotic arm with motor M1 acting as the "shoulder" motor. Instead of attaching a heavy "elbow" motor to this arm, a separate motor M2 is connected to the pen by means of a series of light-weight linkages. The final pen position is determined by the resulting parallelogram of forces. Motor choice is not critical other than each motor must be able to resist the "push" from the opposite motor. Maximum plotting area, for a given set of arms, is obtained when motor M2 is mounted directly above motor M1, Construction, however, is greatly simplified if the motors are placed close together as shown. Equations "Plotter Calculations 1" show the required calculations when the input (x) is less than the offset distance for motor1. "Plotter Calculations 2" show the required calculations when the input (x) is greater than the offset distance for motor2. Resolution The plotter resolution varies with distance d1. Accuracy
Festival Pariscience Rendez-vous incontournable des passionnés de sciences et d’images, Pariscience projette gratuitement une sélection du meilleur de la production française et internationale récente de documentaires scientifiques, dans toutes les durées, tous les formats et sur tous les sujets. Pendant 13 jours, Pariscience organisera la rencontre du public avec la science : • du 10 au 18 octobre 2019 à l’Institut de physique du globe de Paris pour le public scolaire, • du 25 au 30 octobre 2019 au Muséum national d’Histoire naturelle et à l’Institut de physique du globe de Paris pour le grand public et les professionnels. Les spectateurs découvriront la science sous toutes ses formes : des longs métrages, des documentaires de télévision, des courts métrages et des vidéos scientifiques du web... Parce que la recherche scientifique ne peut se dissocier des enjeux sociétaux, Pariscience encourage la citoyenneté par le débat d’idées.