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Hydraulic Jump: Problem Solving01:16

Hydraulic Jump: Problem Solving

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To analyze a hydraulic jump in a rectangular channel with a flow speed of 6 meters per second, follow these steps:Calculate Effective Upstream Velocity:When the downstream gate closes, a hydraulic jump forms, traveling upstream at 2 meters per second. This wave speed combines with the initial channel flow velocity, creating an effective upstream velocity.Identify Flow Velocities Before and After the Hydraulic Jump:Upstream of the hydraulic jump, the effective flow velocity includes both the...
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Collisions in Multiple Dimensions: Problem Solving01:06

Collisions in Multiple Dimensions: Problem Solving

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In multiple dimensions, the conservation of momentum applies in each direction independently. Hence, to solve collisions in multiple dimensions, we should write down the momentum conservation in each direction separately. To help understand collisions in multiple dimensions, consider an example.
A small car of mass 1,200 kg traveling east at 60 km/h collides at an intersection with a truck of mass 3,000 kg traveling due north at 40 km/h. The two vehicles are locked together. What is the...
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Prismatic Beams: Problem Solving01:15

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In the design of a supported timber beam subjected to a distributed load, both the beam's physical dimensions and the timber's characteristics, such as its grade and species, are critical. These factors determine the allowable stress values, which are crucial for calculating the necessary beam depth to ensure structural integrity and safety.
The design begins with analyzing the beam as a free body to identify moments and force balances, thereby determining support reactions. Next, the...
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Rolling Resistance: Problem Solving01:17

Rolling Resistance: Problem Solving

466
Rolling resistance, also known as rolling friction, is the force that resists the motion of a rolling object, such as a wheel, tire, or ball, when it moves over a surface. It is caused by the deformation of the object and the surface in contact with each other, as well as other factors like internal friction, hysteresis, and energy losses within the materials. Rolling resistance opposes the object's motion, requiring additional energy to overcome it and maintain movement. In practical...
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Friction: Problem Solving01:21

Friction: Problem Solving

281
Friction is an essential force that influences the motion of objects in daily life. Depending on the situation, it can be either beneficial or problematic. Consider a bus with a mass of three megagrams and its center of mass at a specific point, moving along a banked road at a constant speed. The coefficient of static friction between the tires and the road is 0.5. Find the maximum angle of the banked road at which the bus would not slip or tip.
Initially, a visual representation of the...
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Problem-Solving01:29

Problem-Solving

249
Effective problem-solving consists of two steps: 1. identifying the problem and 2. selecting the appropriate problem-solving strategy (i.e., a plan of action used to find a solution). Humans use four problem-solving strategies:
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Related Experiment Video

Updated: Sep 18, 2025

Author Spotlight: Investigating the Effects of Mind-Body-Movement Practices on Brain Function
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Author Spotlight: Investigating the Effects of Mind-Body-Movement Practices on Brain Function

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OURCADE: A Game to Solve Real-World Game Accessibility Puzzles.

Jesse J Martinez1

  • 1Paul G. Allen School of Computer Science & Engineering, University of Washington, Seattle, Washington, USA.

Extended Abstracts on Human Factors in Computing Systems. CHI Conference
|June 26, 2025
PubMed
Summary
This summary is machine-generated.

OURCADE is a new game designed to help disabled gamers find accessible video games. It uses player engagement to build a wiki resource, improving game accessibility discovery for everyone.

Keywords:
accessibilitycitizen scienceinformation retrieval and organizationopen sciencerole-playing gamessocial simulation gamesvideo games

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Area of Science:

  • Human-computer interaction
  • Game studies
  • Accessibility research

Background:

  • Growing accessibility in video games contrasts with limited resources for disabled gamers.
  • Existing game accessibility information is fragmented and difficult for players to find.
  • Player communities are a potential source for crowdsourced accessibility data.

Purpose of the Study:

  • To design a novel system for discovering and evaluating video game accessibility.
  • To leverage player engagement for creating a crowdsourced game accessibility wiki.
  • To explore the potential of social simulation role-playing games in addressing complex accessibility questions.

Main Methods:

  • Design of OURCADE, a social simulation role-playing game.
  • Utilizing player engagement mechanics to gather game accessibility information.
  • Developing a wiki-based resource for curated accessibility data.

Main Results:

  • OURCADE effectively engages players in contributing to a game accessibility knowledge base.
  • The system demonstrates potential for creating a comprehensive and reliable resource.
  • Player-driven data collection offers a scalable solution for accessibility information.

Conclusions:

  • Social simulation games can be powerful tools for citizen science and accessibility research.
  • OURCADE provides a viable model for improving game accessibility discovery for disabled gamers.
  • Further research can expand on using games as platforms for addressing complex societal challenges.