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263 result(s) for "Ferris wheels."
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George Ferris, what a wheel!
A portrait of the engineer who invented the Ferris wheel describes the ambitious ideas that inspired him to build the largest wheel in the world for the Chicago World's Fair in 1893.
A Techno-Economic Model for Wind Energy Costs Analysis for Low Wind Speed Areas
The global population is moving away from fossil fuel technologies due to their many disadvantages, such as air pollution, greenhouse gases emission, global warming, acid rain, health problems, and high costs. These disadvantages make fossil fuels unsustainable. As a result, renewable energy is becoming more attractive due to its steadily decreasing costs. Harnessing renewable energy promises to meet the present energy demands of the African continent. The enormous renewable energy potential available across the African continent remains largely untapped, especially for wind energy. However, marginal and fair wind speeds and power densities characterize African wind energy resulting in low and unsustainable power in many areas. This research develops a techno-economic model for wind energy cost analysis for a novel, Ferris wheel-based wind turbine. The model is used to techno-economically analyze the siting of wind turbine sites in low wind speed areas on the African continent. The wind turbine’s technical performance is characterized by calculating the annual energy production and the capacity factor using the wind Weibull probability distribution of the cities and theoretical power curve of the wind turbine. Its economic performance is evaluated using annualized financial return on investment, simple payback period, and levelized cost of electricity. The techno-economic model is validated for 21 African cities and shows that the Ferris wheel-based design is very competitive with four current, commercial wind turbines, as well as with other sources of energy. Hence, the new wind turbine may help provide the economical, clean, renewable energy that Africa needs.
Optimizing the ferris wheel physics e-book with video tracking method to enhance student learning motivation
This research aims to (1) analyze the validity of the physics E-book based on the Ferris Wheel game assisted by Tracker Video Analysis to increase student learning motivation (2) analyze the practicality of the physics E-book based on the Ferris Wheel game assisted by Tracker Video Analysis to increase student learning motivation (3) analyze the effectiveness of a physics e-book based on the Ferris Wheel game assisted by Tracker Video Analysis to increase student learning motivation. Previously, edutainment e-books based on the Ferris Wheel and video tracking analysis in physics learning were not widely developed. Therefore, this study develops them by using the ADDIE method. Experts for feasibility testing have validated the Ferris Wheel Physics E-book result and show a percentage of 85% in the very category proper to use. The results of student responses to the use of the Ferris Wheel Physics E-book were a percentage of 88%, getting an excellent response from students in learning. Based on the student learning motivation analysis, the average N-gain value was 0.78 in the “High” category, and students received an excellent response in learning physics, increasing their learning motivation.
Special aspects of exterior design of elements of stationary and mobile observation constructions
The article systematizes scientific, informational, regulatory and reference literature on the research topic. Construction schemes of stationary, mobile and transportable Ferris wheels are considered, and their common and distinctive features and peculiarities are outlined. Designs of the world’s highest Ferris wheels are illustrated, the history of their creation, types, design and functional features are described. Special aspects of construction of amusement towers as objects of the short-term panoramic observation of the area are specified. The functional purpose of metal observation constructions used in the entertainment industry is discussed. The development of the tourist industry of cities with active sightseeing attractions is analyzed. Conclusions of the scientific research are drawn and prospects for the development of observation constructions as amusement facilities and landmarks of the urban environment are described.
On top of the world
Pedro's family and his friends are spending the day at the amusement park, enjoying the rides and the snacks, so when they get separated from Pedro's brother, Paco, and their mother, a ride on the Ferris wheel seems like it offers an excellent way to spot Paco in the crowded park.
Optimizing a Novel Wind Turbine for Sub‐Saharan Africa: A Techno‐Economic and Multicriteria Evaluation
Wind energy has emerged as a key contributor to the global renewable energy mix, yet much of sub‐Saharan Africa (SSA) remains underutilized due to predominantly low wind speeds and the limitations of conventional horizontal‐axis wind turbines (HAWTs). This study investigates the performance and economic viability of a novel Ferris‐wheel wind turbine (FWT) optimized for low‐wind conditions. Three FWT configurations, each rated at 800 kW with rim diameters of 200, 240, and 341 ft, were evaluated across five representative African countries: Rwanda, Nigeria, Tanzania, Namibia, and Morocco. Using 1‐year (2024) wind data from the NASA POWER database and design‐specific power curves, the study models capacity factor (CF), levelized cost of electricity (LCOE), operational wind days, and structural mass. A multicriteria trade‐off analysis considering rim size, wind resource adaptability, operational performance, and structural feasibility was conducted. Results show that the 341 ft design consistently outperforms the smaller variants in energy yield and cost‐effectiveness, achieving LCOEs below national electricity tariffs in all countries except Rwanda. The 240 ft design offers a favorable balance between performance and capital cost in moderate‐wind locations, while the 200 ft design is generally unsuitable due to low output and high LCOE. These findings highlight the importance of matching turbine configuration to site‐specific wind conditions and structural constraints. FWTs, particularly larger configurations, hold strong potential to expand wind energy deployment in SSA by offering grid‐competitive and technically viable solutions for low‐wind‐speed environments.
The fantastic Ferris Wheel : the story of inventor George Ferris /
\"The World's Fair in Chicago, 1893, was to be a spectacular event: architects, musicians, artists, and inventors worked on special exhibits to display the glories of their countries. But the Fair's planners wanted something really special, something on the scale of the Eiffel Tower ... Engineer George Ferris had an idea--a crazy, unrealistic, gigantic idea. He would construct a twenty-six-story tall observation wheel. The planners didn't think it could be done. They called it a 'monstrosity.' It wouldn't be safe. But George fought for his design. Finally, in December 1892, with only four months to go until the fair, George was given permission to build his wheel\"-- Provided by publisher.
Research for the Influence of Ferris Wheel Deep Foundation Pit Excavation on Adjacent Existing Tunnel
The excavation of deep foundation pit could have a great impact on the adjacent existing structures. The proposed Ferris wheel is located in Jianghehui Block. The construction site is narrow and adjacent existing structures. In this paper, the finite element model was used to compare the influence of the underground separation wall protective measures on the deformation and internal force of adjacent existing tunnel. It was found that the foundation pit bottom presented a tendency of large deformation in the middle and small deformation on both sides. Based on the principle of soil-structure interaction, the optimization study of the underground separation wall was carried out, and it was found that the excessive thickness has little contribution to the reduction of lateral displacement.