{"id":20321,"date":"2026-09-22T15:58:50","date_gmt":"2026-09-22T05:58:50","guid":{"rendered":"https:\/\/geoffreychen.com\/why-an-unridden-bicycle-can-stay-upright-for-a-while\/"},"modified":"2026-09-22T15:58:50","modified_gmt":"2026-09-22T05:58:50","slug":"why-an-unridden-bicycle-can-stay-upright-for-a-while","status":"publish","type":"post","link":"https:\/\/geoffreychen.com\/zh\/why-an-unridden-bicycle-can-stay-upright-for-a-while\/","title":{"rendered":"\u65e0\u4eba\u6276\u7740\uff0c\u81ea\u884c\u8f66\u4e3a\u4ec0\u4e48\u8fd8\u80fd\u81ea\u5df1\u8dd1\u7a33\u4e00\u6bb5\uff1f"},"content":{"rendered":"<\/p>\n<p><img data-recalc-dims=\"1\" decoding=\"async\" src=\"https:\/\/i0.wp.com\/public-assets.geoffreychen.com\/wordpress\/articles\/why-an-unridden-bicycle-can-stay-upright-for-a-while\/9887bdef455338d76ebc3efc.jpg?w=1140&#038;ssl=1\" alt=\"\u65e0\u4eba\u6276\u7740\uff0c\u81ea\u884c\u8f66\u4e3a\u4ec0\u4e48\u8fd8\u80fd\u81ea\u5df1\u8dd1\u7a33\u4e00\u6bb5\uff1f\" loading=\"lazy\"><\/p>\n<p>\u4e00\u8f86\u901f\u5ea6\u5408\u9002\u3001\u8f6c\u5411\u673a\u6784\u81ea\u7531\u7684\u81ea\u884c\u8f66\uff0c\u5373\u4f7f\u6ca1\u6709\u9a91\u624b\uff0c\u4e5f\u53ef\u80fd\u5411\u524d\u6ed1\u884c\u4e00\u6bb5\u800c\u4e0d\u5012\u3002\u5e38\u89c1\u89e3\u91ca\u8bf4\u8fd9\u662f\u8f66\u8f6e\u7684\u9640\u87ba\u6548\u5e94\uff1a\u65cb\u8f6c\u8f66\u8f6e\u6297\u62d2\u6539\u53d8\u8f74\u5411\uff0c\u6240\u4ee5\u628a\u8f66\u67b6\u201c\u6491\u4f4f\u201d\u3002\u8fd9\u4e2a\u4f5c\u7528\u786e\u5b9e\u5b58\u5728\uff0c\u5374\u4e0d\u662f\u5168\u90e8\u7b54\u6848\u3002<\/p>\n<p>\u5173\u952e\u662f\u503e\u659c\u4e0e\u8f6c\u5411\u4f1a\u76f8\u4e92\u5f71\u54cd\u3002\u8f66\u8eab\u7a0d\u5411\u5de6\u503e\u65f6\uff0c\u524d\u8f6e\u82e5\u4e5f\u5411\u5de6\u8f6c\uff0c\u63a5\u5730\u70b9\u4f1a\u79fb\u5230\u91cd\u5fc3\u4e0b\u65b9\uff1b\u81ea\u884c\u8f66\u968f\u540e\u8d70\u51fa\u4e00\u6761\u5f27\u7ebf\uff0c\u800c\u4e0d\u662f\u7ee7\u7eed\u539f\u5730\u5411\u5de6\u5012\u3002\u8f66\u67b6\u51e0\u4f55\u3001\u524d\u53c9\u8f6c\u5411\u8f74\u3001\u8f6e\u5b50\u4e0e\u8f66\u67b6\u7684\u8d28\u91cf\u5206\u5e03\uff0c\u4ee5\u53ca\u901f\u5ea6\uff0c\u5171\u540c\u51b3\u5b9a\u8fd9\u79cd\u4fee\u6b63\u662f\u5426\u53ca\u65f6\u3001\u662f\u5426\u8fc7\u91cf\u3002\u901f\u5ea6\u592a\u4f4e\u6216\u7ed3\u6784\u4e0d\u5408\u9002\uff0c\u81ea\u7a33\u5b9a\u5c31\u4f1a\u6d88\u5931\u3002<\/p>\n<p>2011\u5e74\u7684\u7814\u7a76\u8005\u751a\u81f3\u9020\u51fa\u4e00\u8f86\u7279\u6b8a\u81ea\u884c\u8f66\uff0c\u7528\u53cd\u5411\u65cb\u8f6c\u7684\u8f6e\u5b50\u62b5\u6d88\u4e3b\u8981\u9640\u87ba\u6548\u5e94\uff0c\u5e76\u8ba9\u901a\u5e38\u88ab\u8ba4\u4e3a\u6709\u5229\u7a33\u5b9a\u7684\u201c\u62d6\u66f3\u8ddd\u201d\u4e3a\u8d1f\uff1b\u5b83\u5728\u4e00\u5b9a\u901f\u5ea6\u8303\u56f4\u5185\u4ecd\u80fd\u81ea\u884c\u7a33\u5b9a\u3002\u8fd9\u8bf4\u660e\u9640\u87ba\u6548\u5e94\u548c\u6b63\u62d6\u66f3\u8ddd\u90fd\u4e0d\u662f\u5355\u72ec\u7684\u5fc5\u8981\u6761\u4ef6\uff0c\u4f46\u4e0d\u4ee3\u8868\u5b83\u4eec\u6ca1\u6709\u5f71\u54cd\u3002\u771f\u6b63\u8d77\u4f5c\u7528\u7684\u662f\u6574\u8f66\u52a8\u529b\u5b66\uff1a\u4e00\u6b21\u5c0f\u503e\u659c\u80fd\u5426\u5f15\u8d77\u6070\u5f53\u8f6c\u5411\uff0c\u5e76\u628a\u8f6e\u5b50\u5e26\u56de\u91cd\u5fc3\u4e0b\u9762\u3002<\/p>\n<p>\u9a91\u8f66\u4eba\u5f53\u7136\u8fd8\u4f1a\u4e3b\u52a8\u4fee\u6b63\uff0c\u5c24\u5176\u5728\u4f4e\u901f\u65f6\u3002\u5b9e\u9a8c\u63ed\u793a\u7684\u4e0d\u662f\u201c\u81ea\u884c\u8f66\u4e0d\u7528\u5e73\u8861\u201d\uff0c\u800c\u662f\u5e73\u8861\u5e76\u975e\u53ea\u9760\u4eba\u7684\u624b\uff0c\u4e5f\u4e0d\u662f\u7531\u4e00\u4e2a\u795e\u5947\u6548\u5e94\u72ec\u81ea\u5b8c\u6210\u3002<\/p>\n<p><a href=\"https:\/\/www.science.org\/doi\/10.1126\/science.1201959\" rel=\"nofollow\">https:\/\/www.science.org\/doi\/10.1126\/science.1201959<\/a><\/p>\n<p>","protected":false},"excerpt":{"rendered":"","protected":false},"author":17897162,"featured_media":0,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_coblocks_attr":"","_coblocks_dimensions":"","_coblocks_responsive_height":"","_coblocks_accordion_ie_support":"","_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_geoff_meta_description_en":"A moving bicycle can steer into a lean and bring its wheels beneath its centre of mass. Self-stability depends on the whole design, not gyroscopic effect alone.","_geoff_meta_description_zh":"\u884c\u8fdb\u4e2d\u7684\u81ea\u884c\u8f66\u4f1a\u7531\u503e\u659c\u5f15\u53d1\u6070\u5f53\u8f6c\u5411\uff0c\u4f7f\u8f6e\u80ce\u91cd\u65b0\u79fb\u5230\u91cd\u5fc3\u4e0b\u65b9\u3002\u5b9e\u9a8c\u8868\u660e\uff0c\u8fd9\u79cd\u81ea\u7a33\u5b9a\u6765\u81ea\u6574\u8f66\u51e0\u4f55\u3001\u8d28\u91cf\u4e0e\u901f\u5ea6\u7684\u5171\u540c\u4f5c\u7528\uff0c\u4e0d\u53ea\u662f\u8f66\u8f6e\u7684\u9640\u87ba\u6548\u5e94\u3002","_wpcom_ai_launchpad_first_post":false,"_jetpack_hide_featured_image":false,"_jetpack_featured_image_duplicate_dismissed":0,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"jetpack_post_was_ever_published":false},"categories":[787297218],"tags":[787300662,787300665,787300663,787300664],"class_list":["post-20321","post","type-post","status-publish","format-standard","hentry","category-daily-maths-physics-chemistry","tag-bicycle-dynamics","tag-self-stability-zh","tag-bicycle-dynamics-zh","tag-self-stability",""],"translatepress_titles":{"en_AU":"Why Can an Unridden Bicycle Stay Upright for a While?","zh_CN":"\u65e0\u4eba\u6276\u7740\uff0c\u81ea\u884c\u8f66\u4e3a\u4ec0\u4e48\u8fd8\u80fd\u81ea\u5df1\u8dd1\u7a33\u4e00\u6bb5\uff1f"},"jetpack_publicize_connections":[],"jetpack_likes_enabled":false,"jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p1ar9H-5hL","jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/geoffreychen.com\/zh\/wp-json\/wp\/v2\/posts\/20321","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/geoffreychen.com\/zh\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/geoffreychen.com\/zh\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/geoffreychen.com\/zh\/wp-json\/wp\/v2\/users\/17897162"}],"replies":[{"embeddable":true,"href":"https:\/\/geoffreychen.com\/zh\/wp-json\/wp\/v2\/comments?post=20321"}],"version-history":[{"count":0,"href":"https:\/\/geoffreychen.com\/zh\/wp-json\/wp\/v2\/posts\/20321\/revisions"}],"wp:attachment":[{"href":"https:\/\/geoffreychen.com\/zh\/wp-json\/wp\/v2\/media?parent=20321"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/geoffreychen.com\/zh\/wp-json\/wp\/v2\/categories?post=20321"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/geoffreychen.com\/zh\/wp-json\/wp\/v2\/tags?post=20321"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}