{"id":83,"date":"2020-04-13T16:57:42","date_gmt":"2020-04-13T16:57:42","guid":{"rendered":"https:\/\/wp.physics.wisc.edu\/ingersollmuseum\/?page_id=83"},"modified":"2026-05-13T06:04:37","modified_gmt":"2026-05-13T06:04:37","slug":"bicyclewheelgyroscope","status":"publish","type":"page","link":"https:\/\/wp.physics.wisc.edu\/ingersollmuseum\/exhibits\/mechanics\/bicyclewheelgyroscope\/","title":{"rendered":"Bicycle Wheel Gyroscope"},"content":{"rendered":"<h1 style=\"margin-top:var(--wp--preset--spacing--50);margin-bottom:var(--wp--preset--spacing--20)\" class=\"is-style-mini-bar wp-block-post-title\">Bicycle Wheel Gyroscope<\/h1>\n\n\n<div class=\"wp-block-group alignfull has-base-background-color has-background has-global-padding is-layout-constrained wp-block-group-is-layout-constrained\" style=\"margin-top:0;margin-bottom:0;padding-top:var(--wp--preset--spacing--40);padding-bottom:var(--wp--preset--spacing--60)\">\n<div class=\"wp-block-columns alignnone is-layout-flex wp-container-core-columns-is-layout-b4b75a54 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<div class=\"wp-block-group is-layout-constrained has-global-padding wp-block-group-is-layout-constrained\">\n<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"768\" src=\"https:\/\/wp.physics.wisc.edu\/ingersollmuseum\/wp-content\/uploads\/sites\/10\/2020\/04\/BikeWheel-1A-1024x768.jpg\" alt=\"\" class=\"wp-image-84\" srcset=\"https:\/\/wp.physics.wisc.edu\/ingersollmuseum\/wp-content\/uploads\/sites\/10\/2020\/04\/BikeWheel-1A-1024x768.jpg 1024w, https:\/\/wp.physics.wisc.edu\/ingersollmuseum\/wp-content\/uploads\/sites\/10\/2020\/04\/BikeWheel-1A-300x225.jpg 300w, https:\/\/wp.physics.wisc.edu\/ingersollmuseum\/wp-content\/uploads\/sites\/10\/2020\/04\/BikeWheel-1A-768x576.jpg 768w, https:\/\/wp.physics.wisc.edu\/ingersollmuseum\/wp-content\/uploads\/sites\/10\/2020\/04\/BikeWheel-1A-1200x900.jpg 1200w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Setup and Procedure<\/h2>\n\n\n\n<ol class=\"wp-block-list is-style-more-space\">\n<li>An old bike wheel with counter weight is suspend by a chain from a swivel bearing in the ceiling.<\/li>\n\n\n\n<li>To use a different bike wheel, unclip the old blue one and clip the chain to the handle of the other wheel.<\/li>\n\n\n\n<li>Using one hand, grab the opposite handle, and position the wheel so that its rotational plane is vertical.<\/li>\n\n\n\n<li>Using your other free hand, grab the tire, give it a good pull back to start it spinning.<\/li>\n\n\n\n<li>You can now let the wheel go freely, but still hold onto the chain.<\/li>\n\n\n\n<li>It will remain upright as it spins.<\/li>\n<\/ol>\n\n\n\n<h2 class=\"wp-block-heading\">Cautions, Warnings, or Safety Concerns<\/h2>\n\n\n\n<ul class=\"wp-block-list is-style-more-space\">\n<li>Long hair, jewelry, and fingers can get caught in the spokes of the wheel especially when it&#8217;s rotating. Be sure to exercise caution.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Discussion<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Once the wheel is spinning, it has angular momentum. The amount can be increased by making the wheel spin faster. Since angular momentum is conserved, the rotational axis of the wheel will remain in place. This would be the case if there were not any torques acting on the wheel. In our case, this net torque is due to the tension of the cable. The resultant effect is that our wheel precesses around the cable.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><i><b><a href=\"https:\/\/wiki.physics.wisc.edu\/facultywiki\/Demonstrations\">Physics Lecture Demonstration Database<\/a> <\/b><\/i><\/p>\n\n\n\n<ul class=\"wp-block-list is-style-more-space\">\n<li><a href=\"https:\/\/wiki.physics.wisc.edu\/facultywiki\/BikeGyro\">Bicycle Wheel Gyroscope, 1Q50.21<\/a><\/li>\n<\/ul>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Setup and Procedure Cautions, Warnings, or Safety Concerns Discussion Once the wheel is spinning, it has angular momentum. The amount can be increased by making the wheel spin faster. Since angular momentum is conserved, the rotational axis of the wheel will remain in place. This would be the case if there were not any torques &hellip;<\/p>\n","protected":false},"author":2,"featured_media":0,"parent":50,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_uw_migration_status":"complete","_uw_gutenberg_post_content_before_migration":"","_uw_seo_meta_title":"","_uw_seo_meta_description":"","_uw_seo_twitter_card_type":"","_uw_seo_meta_image":"","_uw_seo_meta_image_url":"","_uw_seo_meta_image_sizes":[],"_uw_seo_custom_meta_tags":[],"footnotes":""},"class_list":["post-83","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/wp.physics.wisc.edu\/ingersollmuseum\/wp-json\/wp\/v2\/pages\/83","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/wp.physics.wisc.edu\/ingersollmuseum\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/wp.physics.wisc.edu\/ingersollmuseum\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/wp.physics.wisc.edu\/ingersollmuseum\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/wp.physics.wisc.edu\/ingersollmuseum\/wp-json\/wp\/v2\/comments?post=83"}],"version-history":[{"count":4,"href":"https:\/\/wp.physics.wisc.edu\/ingersollmuseum\/wp-json\/wp\/v2\/pages\/83\/revisions"}],"predecessor-version":[{"id":970,"href":"https:\/\/wp.physics.wisc.edu\/ingersollmuseum\/wp-json\/wp\/v2\/pages\/83\/revisions\/970"}],"up":[{"embeddable":true,"href":"https:\/\/wp.physics.wisc.edu\/ingersollmuseum\/wp-json\/wp\/v2\/pages\/50"}],"wp:attachment":[{"href":"https:\/\/wp.physics.wisc.edu\/ingersollmuseum\/wp-json\/wp\/v2\/media?parent=83"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}