M\u1ed9t s\u1ed1 nh\u00e0 khoa h\u1ecdc n\u00f3i r\u1eb1ng th\u1eddi gian thay \u0111\u1ed5i kh\u00f4ng ng\u1eebng. Nh\u01b0ng kh\u00f4ng ai trong s\u1ed1 n\u00e0y gi\u1ea3i th\u00edch \u0111\u01b0\u1ee3c s\u1ef1 thay \u0111\u1ed5i trong th\u1ebf gi\u1edbi c\u00f4ng ngh\u1ec7 nh\u01b0 th\u1ebf n\u00e0o. N\u00f3 c\u00f3 th\u1ec3 thay \u0111\u1ed5i nhanh h\u01a1n b\u1ea1n ngh\u0129 nhi\u1ec1u.<\/strong><\/em><\/p>\n\n\n\n