Make waves with a dripping faucet, audio speaker, or laser! Add a second source or a pair of slits to create an interference pattern.
Watch a string vibrate in slow motion. Wiggle the end of the string and make waves, or adjust the frequency and amplitude of an oscillator. Adjust the damping and tension. The end can be fixed, loose, or open.
This article provides links to interactive web sites and lesson plans for teaching about paleontology, dinosaurs, and archaeology in the elementary classroom.
The simulation shows different ways of looking at position and velocity vectors for a ball experiencing projectile motion.
تبين المحاكاة طرق مختلفة للنظر في الموقف وسرعة النقل لحركة المقذوفات
The kids from the Yard have built a Wind Simulator that helps them see when the wind will pick up. They learn how low and high pressure systems work to create wind.
Yellow Moon Canyon is a negotiation between two legal agents representing actor clients over the terms of a contract for an upcoming film. It is a useful simulation to introduce students to more advanced concepts in negotiation, such as principal-agent dynamics. This simulation can also be adapted for use as a four-party negotiation, thus introducing students to the additional challenges of multi-party negotiation.Teaching Notes include General Instructions, Confidential Instructions for Jonathan Maloney- Agent for John Bell, and Confidential Instructions for Mary McManus- Agent of Henry Cooper.
The simulation shows the classic physics situation of a monkey and hunter.
In this case, the hunter is trying to tranquilize the monkey, so the monkey can be re-located to a better habitat. The monkey is clever - when the tranquilizer dart (in blue) leaves the gun, the monkey (in purple) lets go of the tree branch, and starts to fall straight down. Note that there is a net (not shown) at the bottom to catch the monkey, so the monkey won't get hurt.
How should the gun be aimed so the dart hits the monkey?
You can explore various parameters, including changing the direction the gun is aimed, changing the value of the acceleration due to gravity, and adjusting the dart's launch speed.
This resource is a video abstract of a research paper created by Research Square on behalf of its authors. It provides a synopsis that's easy to understand, and can be used to introduce the topics it covers to students, researchers, and the general public. The video's transcript is also provided in full, with a portion provided below for preview:
"Differential abundance analysis (DAA) is a key statistical method for comparing microbiome compositions under different conditions, such as health vs. disease. However, DAA is complicated by the use of relative, rather than absolute, abundance values and by a high risk of false positives, or detection of significant effects when there aren’t any. In addition, the existing DAA tools can produce very divergent results from the same data, making it difficult to select the best tool. To provide guidance, a new study comprehensively evaluated the currently available tools with simulations based on real data. The researchers found that none of the tools were simultaneously robust, powerful, and flexible. Therefore, they concluded that none were suitable for blind application to real microbiome datasets. To build a better path forward, the researchers designed a new tool, ZicoSeq that drew on the strengths of the other available DAA methods while addressing their major limitations..."
The rest of the transcript, along with a link to the research itself, is available on the resource itself.
In this simulation, you see, on the left, a picture of a box at rest on a table. You can apply a vertical force (up or down) to the box. On the right, you can see the full free-body diagram of the box. The free-body diagram shows the gravitational force (green) exerted on the box by the Earth, the normal force (purple) exerted by the table, and the vertical force (dark blue) that you apply. Note that, on the free-body diagram, all three forces are along the vertical line passing through the center of the box, but the force of gravity and the normal force have been shifted a little so they can be seen more easily.
هذه المحاكاة تتحدث عن القوة الطبيعية في الفيزياء