{"id":2033,"date":"2026-06-15T02:08:15","date_gmt":"2026-06-15T02:08:15","guid":{"rendered":"https:\/\/swesd.com\/?p=2033"},"modified":"2026-07-07T01:02:14","modified_gmt":"2026-07-07T01:02:14","slug":"what-is-static-shock","status":"publish","type":"post","link":"https:\/\/swesd.com\/vi\/blog\/what-is-static-shock\/","title":{"rendered":"S\u1ed1c t\u0129nh \u0111i\u1ec7n l\u00e0 g\u00ec?"},"content":{"rendered":"

S\u1ed1c t\u0129nh \u0111i\u1ec7n l\u00e0 hi\u1ec7n t\u01b0\u1ee3ng m\u00e0 h\u1ea7u nh\u01b0 ai c\u0169ng t\u1eebng tr\u1ea3i qua, th\u1eadm ch\u00ed nhi\u1ec1u h\u01a1n m\u1ed9t l\u1ea7n, nh\u01b0ng ph\u1ea7n l\u1edbn m\u1ecdi ng\u01b0\u1eddi l\u1ea1i kh\u00f4ng bi\u1ebft nhi\u1ec1u v\u1ec1 hi\u1ec7n t\u01b0\u1ee3ng n\u00e0y. S\u1ed1c t\u0129nh \u0111i\u1ec7n<\/strong> x\u1ea3y ra do s\u1ef1 ph\u00f3ng \u0111i\u1ec7n \u0111\u1ed9t ng\u1ed9t khi \u0111i\u1ec7n t\u00edch t\u0129nh t\u00edch t\u1ee5 v\u00e0 truy\u1ec1n \u0111i. S\u1ef1 t\u00edch t\u1ee5 n\u00e0y c\u00f3 th\u1ec3 t\u1ea1o ra m\u1ed9t l\u01b0\u1ee3ng \u0111i\u1ec7n t\u00edch nh\u1ecf, g\u00e2y ra c\u00fa gi\u1eadt \u0111i\u1ec7n nh\u1eb9 v\u1edbi c\u01b0\u1eddng \u0111\u1ed9 kh\u00e1c nhau, t\u1eeb c\u1ea3m gi\u00e1c b\u1ea5t ng\u1edd \u0111\u01a1n thu\u1ea7n \u0111\u1ebfn h\u01a1i kh\u00f3 ch\u1ecbu. V\u1eady s\u1ed1c t\u0129nh \u0111i\u1ec7n \u0111\u01b0\u1ee3c \u0111\u1ecbnh ngh\u0129a nh\u01b0 th\u1ebf n\u00e0o v\u00e0 n\u00f3 x\u1ea3y ra ra sao? Trong c\u00e1c ph\u1ea7n ti\u1ebfp theo, ch\u00fang ta s\u1ebd t\u00ecm hi\u1ec3u v\u1ec1 \u0111i\u1ec7n t\u0129nh, gi\u1ea3i th\u00edch c\u00e1ch n\u00f3 t\u1ea1o ra \u0111i\u1ec7n \u00e1p v\u00e0 gi\u1edbi thi\u1ec7u c\u00e1c chi\u1ebfn l\u01b0\u1ee3c, k\u1ef9 thu\u1eadt gi\u00fap gi\u1ea3m \u0111i\u1ec7n t\u00edch t\u0129nh trong cu\u1ed9c s\u1ed1ng h\u1eb1ng ng\u00e0y.<\/p>\n

T\u00ecm hi\u1ec3u v\u1ec1 \u0111i\u1ec7n t\u0129nh<\/h2>\n

\u0110i\u1ec7n t\u0129nh \u0111\u01b0\u1ee3c \u0111\u1ecbnh ngh\u0129a l\u00e0 s\u1ef1 t\u00edch t\u1ee5 \u0111i\u1ec7n t\u00edch tr\u00ean b\u1ec1 m\u1eb7t c\u1ee7a m\u1ed9t v\u1eadt li\u1ec7u. Kh\u00e1c v\u1edbi d\u00f2ng \u0111i\u1ec7n, v\u1ed1n di chuy\u1ec3n qua c\u00e1c v\u1eadt li\u1ec7u d\u1eabn \u0111i\u1ec7n, \u0111i\u1ec7n t\u0129nh kh\u00f4ng l\u01b0u chuy\u1ec3n m\u00e0 s\u1ebd t\u1ed3n t\u1ea1i t\u1ea1i m\u1ed9t v\u1ecb tr\u00ed cho \u0111\u1ebfn khi \u0111\u01b0\u1ee3c ph\u00f3ng \u0111i\u1ec7n. \u0110i\u1ec7n t\u0129nh th\u01b0\u1eddng xu\u1ea5t hi\u1ec7n khi hai v\u1eadt li\u1ec7u kh\u00e1c nhau ti\u1ebfp x\u00fac v\u00e0 trao \u0111\u1ed5i electron, khi\u1ebfn s\u1ed1 l\u01b0\u1ee3ng \u0111i\u1ec7n t\u00edch tr\u00ean hai v\u1eadt li\u1ec7u tr\u1edf n\u00ean kh\u00e1c bi\u1ec7t. Khi \u0111i\u1ec7n t\u00edch g\u1eb7p m\u1ed9t v\u1eadt d\u1eabn \u0111i\u1ec7n (v\u00ed d\u1ee5 nh\u01b0 kim lo\u1ea1i), n\u00f3 s\u1ebd nhanh ch\u00f3ng ph\u00f3ng \u0111i\u1ec7n v\u00e0 g\u00e2y ra hi\u1ec7n t\u01b0\u1ee3ng gi\u1eadt \u0111i\u1ec7n (s\u1ed1c \u0111i\u1ec7n).<\/p>\n

S\u1ed1c t\u0129nh \u0111i\u1ec7n x\u1ea3y ra nh\u01b0 th\u1ebf n\u00e0o?<\/h2>\n

V\u1ec1 c\u01a1 b\u1ea3n, s\u1ed1c t\u0129nh \u0111i\u1ec7n l\u00e0 hi\u1ec7n t\u01b0\u1ee3ng ph\u00f3ng \u0111i\u1ec7n t\u00edch nhanh ch\u00f3ng. H\u00e3y t\u01b0\u1edfng t\u01b0\u1ee3ng b\u1ea1n \u0111i v\u1ec1 ph\u00eda m\u1ed9t t\u1ea5m th\u1ea3m khi \u0111ang mang gi\u00e0y \u0111\u1ebf cao su. Hai b\u1ec1 m\u1eb7t c\u1ecd x\u00e1t v\u1edbi nhau khi\u1ebfn electron truy\u1ec1n t\u1eeb b\u1ec1 m\u1eb7t n\u00e0y sang b\u1ec1 m\u1eb7t kia. M\u1ed9t b\u1ec1 m\u1eb7t mang \u0111i\u1ec7n t\u00edch \u00e2m do nh\u1eadn th\u00eam electron, trong khi b\u1ec1 m\u1eb7t c\u00f2n l\u1ea1i mang \u0111i\u1ec7n t\u00edch d\u01b0\u01a1ng do m\u1ea5t electron. Khi b\u1ea1n ch\u1ea1m v\u00e0o m\u1ed9t b\u1ec1 m\u1eb7t d\u1eabn \u0111i\u1ec7n, ch\u1eb3ng h\u1ea1n nh\u01b0 tay n\u1eafm c\u1eeda b\u1eb1ng kim lo\u1ea1i, c\u00e1c \u0111i\u1ec7n t\u00edch s\u1ebd nhanh ch\u00f3ng di chuy\u1ec3n gi\u1eefa hai b\u1ec1 m\u1eb7t \u0111\u1ec3 c\u00e2n b\u1eb1ng \u0111i\u1ec7n t\u00edch. \u0110i\u1ec1u n\u00e0y t\u1ea1o ra c\u00fa gi\u1eadt \u0111i\u1ec7n m\u00e0 b\u1ea1n c\u1ea3m nh\u1eadn \u0111\u01b0\u1ee3c.<\/p>\n

\"Thi\u1ebft<\/p>\n

Nh\u1eefng nguy\u00ean nh\u00e2n ph\u1ed5 bi\u1ebfn g\u00e2y s\u1ed1c t\u0129nh \u0111i\u1ec7n<\/h2>\n

Hi\u1ec3u r\u00f5 nguy\u00ean nh\u00e2n g\u00e2y s\u1ed1c t\u0129nh \u0111i\u1ec7n s\u1ebd gi\u00fap nh\u1eefng ng\u01b0\u1eddi th\u01b0\u1eddng g\u1eb7p hi\u1ec7n t\u01b0\u1ee3ng n\u00e0y bi\u1ebft c\u00e1ch tr\u00e1nh ho\u1eb7c gi\u1ea3m thi\u1ec3u t\u00ecnh tr\u1ea1ng \u0111\u00f3. C\u00f3 nhi\u1ec1u y\u1ebfu t\u1ed1 c\u00f3 th\u1ec3 g\u00e2y ra s\u1ed1c t\u0129nh \u0111i\u1ec7n, ch\u1eb3ng h\u1ea1n nh\u01b0:<\/p>\n

\u0110\u1ed9 \u1ea9m th\u1ea5p: Kh\u00f4ng kh\u00ed c\u00f3 \u0111\u1ed9 \u1ea9m th\u1ea5p, \u0111\u1eb7c bi\u1ec7t trong nh\u1eefng th\u00e1ng l\u1ea1nh, l\u00e0m t\u0103ng s\u1ef1 t\u00edch t\u1ee5 \u0111i\u1ec7n t\u00edch t\u0129nh (\u0111i\u1ec7n t\u0129nh). Nguy\u00ean nh\u00e2n l\u00e0 do h\u01a1i \u1ea9m trong kh\u00f4ng kh\u00ed gi\u00fap ph\u00e2n t\u00e1n \u0111i\u1ec7n t\u00edch. V\u00ec v\u1eady, \u0111i\u1ec7n t\u00edch s\u1ebd t\u00edch t\u1ee5 d\u1ec5 d\u00e0ng h\u01a1n nhi\u1ec1u trong \u0111i\u1ec1u ki\u1ec7n kh\u00f4 r\u00e1o (t\u1ee9c l\u00e0 \u0111\u1ed9 \u1ea9m th\u1ea5p).<\/p>\n

M\u1ed9t s\u1ed1 c\u00e1ch ph\u1ed5 bi\u1ebfn t\u1ea1o ra \u0111i\u1ec7n t\u0129nh do ma s\u00e1t bao g\u1ed3m \u0111i gi\u00e0y \u0111\u1ebf cao su tr\u00ean th\u1ea3m (ho\u1eb7c di chuy\u1ec3n tr\u00ean c\u00e1c b\u1ec1 m\u1eb7t kh\u00e1c) v\u00e0 \u0111\u1ec3 c\u00e1c b\u1ed9 ph\u1eadn c\u01a1 th\u1ec3 c\u1ecd x\u00e1t v\u1edbi nhi\u1ec1u b\u1ec1 m\u1eb7t kh\u00e1c nhau, \u0111\u1eb7c bi\u1ec7t l\u00e0 c\u00e1c lo\u1ea1i v\u1ea3i.<\/p>\n

Ngo\u00e0i ra, m\u1ed9t s\u1ed1 lo\u1ea1i v\u1ea3i t\u1ed5ng h\u1ee3p (nh\u01b0 polyester, rayon v\u00e0 nylon) c\u00f3 xu h\u01b0\u1edbng t\u1ea1o ra \u0111i\u1ec7n t\u00edch t\u0129nh d\u1ec5 d\u00e0ng h\u01a1n so v\u1edbi c\u00e1c lo\u1ea1i s\u1ee3i t\u1ef1 nhi\u00ean nh\u01b0 cotton.<\/p>\n

Vi\u1ec7c c\u1ea7m n\u1eafm c\u00e1c v\u1eadt d\u1ee5ng b\u1eb1ng nh\u1ef1a v\u00e0 cao su, ch\u1eb3ng h\u1ea1n nh\u01b0 b\u00f3ng bay ho\u1eb7c \u0111\u1ed3 ch\u01a1i, c\u00f3 th\u1ec3 khi\u1ebfn \u0111i\u1ec7n t\u0129nh t\u00edch t\u1ee5 tr\u00ean c\u01a1 th\u1ec3 c\u0169ng nh\u01b0 trong qu\u1ea7n \u00e1o c\u1ee7a b\u1ea1n.<\/p>\n

Thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed: Vi\u1ec7c t\u01b0\u01a1ng t\u00e1c v\u1edbi c\u00e1c thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed nh\u01b0 m\u00e1y t\u00ednh x\u00e1ch tay ho\u1eb7c \u0111i\u1ec7n tho\u1ea1i th\u00f4ng minh c\u00f3 th\u1ec3 t\u1ea1o ra m\u1ed9t l\u01b0\u1ee3ng \u0111i\u1ec7n t\u0129nh nh\u1ecf, \u0111\u1eb7c bi\u1ec7t trong m\u00f4i tr\u01b0\u1eddng kh\u00f4 r\u00e1o.<\/p>\n

C\u00e1ch \u0111i\u1ec7n t\u00edch t\u0129nh t\u00edch t\u1ee5<\/h2>\n

Hi\u1ec7n t\u01b0\u1ee3ng nhi\u1ec5m \u0111i\u1ec7n do ma s\u00e1t, trong \u0111\u00f3 electron di chuy\u1ec3n t\u1eeb v\u1eadt th\u1ec3 n\u00e0y sang v\u1eadt th\u1ec3 kh\u00e1c khi ch\u00fang ti\u1ebfp x\u00fac v\u1eadt l\u00fd r\u1ed3i t\u00e1ch r\u1eddi nhau, l\u00e0 nguy\u00ean nh\u00e2n ch\u00ednh g\u00e2y t\u00edch t\u1ee5 \u0111i\u1ec7n t\u0129nh. H\u00e3y xem x\u00e9t v\u00ed d\u1ee5 sau: khi b\u1ea1n l\u00ea ch\u00e2n tr\u00ean th\u1ea3m, c\u01a1 th\u1ec3 s\u1ebd t\u00edch t\u1ee5 electron v\u00e0 t\u1ea1o ra \u0111i\u1ec7n t\u00edch \u00e2m. Sau \u0111\u00f3, khi b\u1ea1n ch\u1ea1m v\u00e0o m\u1ed9t v\u1eadt b\u1eb1ng kim lo\u1ea1i, ch\u1eb3ng h\u1ea1n nh\u01b0 tay n\u1eafm c\u1eeda, \u0111i\u1ec7n t\u00edch c\u00f3 th\u1ec3 nhanh ch\u00f3ng ph\u00f3ng sang v\u1eadt \u0111\u00f3, g\u00e2y ra hi\u1ec7n t\u01b0\u1ee3ng s\u1ed1c t\u0129nh \u0111i\u1ec7n.<\/p>\n

\u0110i\u1ec7n t\u00edch t\u0129nh c\u00f3 th\u1ec3 t\u00edch t\u1ee5 th\u00f4ng qua c\u00e1c qu\u00e1 tr\u00ecnh nh\u01b0 ma s\u00e1t, c\u1ea3m \u1ee9ng \u0111i\u1ec7n v\u00e0 d\u1eabn \u0111i\u1ec7n, \u0111\u1eb7c bi\u1ec7t trong nh\u1eefng m\u00f4i tr\u01b0\u1eddng \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t nh\u01b0 nh\u00e0 m\u00e1y, n\u01a1i c\u00e1c v\u1eadt li\u1ec7u c\u1ee5 th\u1ec3 \u0111\u01b0\u1ee3c x\u1eed l\u00fd v\u00e0 hi\u1ec7n t\u01b0\u1ee3ng ma s\u00e1t th\u01b0\u1eddng xuy\u00ean x\u1ea3y ra.<\/p>\n

T\u1ea1i sao s\u1ed1c t\u0129nh \u0111i\u1ec7n x\u1ea3y ra th\u01b0\u1eddng xuy\u00ean h\u01a1n v\u00e0o m\u00f9a \u0111\u00f4ng?<\/h2>\n

C\u00f3 th\u1ec3 b\u1ea1n \u0111\u00e3 nhi\u1ec1u l\u1ea7n nh\u1eadn th\u1ea5y hi\u1ec7n t\u01b0\u1ee3ng b\u1ecb \u0111i\u1ec7n gi\u1eadt t\u0129nh \u0111i\u1ec7n x\u1ea3y ra th\u01b0\u1eddng xuy\u00ean h\u01a1n v\u00e0o m\u00f9a \u0111\u00f4ng so v\u1edbi m\u00f9a h\u00e8. Nguy\u00ean nh\u00e2n l\u00e0 do kh\u00f4ng kh\u00ed ch\u00fang ta h\u00edt th\u1edf trong th\u1eddi ti\u1ebft l\u1ea1nh th\u01b0\u1eddng kh\u00f4 h\u01a1n nhi\u1ec1u so v\u1edbi nh\u1eefng th\u00e1ng th\u1eddi ti\u1ebft \u1ea5m \u00e1p. Kh\u00f4ng kh\u00ed \u1ea9m cho ph\u00e9p \u0111i\u1ec7n t\u00edch di chuy\u1ec3n v\u00e0 ph\u00e2n t\u00e1n, nh\u1edd \u0111\u00f3 ng\u0103n ng\u1eeba s\u1ef1 t\u00edch t\u1ee5 n\u0103ng l\u01b0\u1ee3ng \u0111i\u1ec7n. Trong khi \u0111\u00f3, kh\u00f4ng kh\u00ed kh\u00f4 kh\u00f4ng cho ph\u00e9p \u0111i\u1ec7n t\u00edch truy\u1ec1n qua v\u00e0 ho\u1ea1t \u0111\u1ed9ng nh\u01b0 m\u1ed9t r\u00e0o c\u1ea3n, khi\u1ebfn c\u00e1c \u0111\u1ed3 v\u1eadt v\u00e0 con ng\u01b0\u1eddi d\u1ec5 t\u00edch t\u1ee5 \u0111i\u1ec7n t\u00edch t\u0129nh \u0111i\u1ec7n h\u01a1n.<\/p>\n

\u0110i\u1ec7n gi\u1eadt t\u0129nh \u0111i\u1ec7n c\u00f3 nguy hi\u1ec3m kh\u00f4ng?<\/h2>\n

Th\u00f4ng th\u01b0\u1eddng, \u0111i\u1ec7n gi\u1eadt t\u0129nh \u0111i\u1ec7n ch\u1ec9 g\u00e2y kh\u00f3 ch\u1ecbu v\u00e0 \u00edt nguy hi\u1ec3m, thay v\u00ec l\u00e0 m\u1ed1i \u0111e d\u1ecda nghi\u00eam tr\u1ecdng \u0111\u1ed1i v\u1edbi s\u1ef1 an to\u00e0n. \u0110i\u1ec7n \u00e1p cao li\u00ean quan \u0111\u1ebfn hi\u1ec7n t\u01b0\u1ee3ng ph\u00f3ng \u0111i\u1ec7n t\u0129nh (c\u00f3 th\u1ec3 l\u00ean t\u1edbi 20.000 v\u00f4n) ch\u1ec9 khi\u1ebfn hi\u1ec7n t\u01b0\u1ee3ng n\u00e0y tr\u00f4ng \u0111\u00e1ng s\u1ee3. Trong h\u1ea7u h\u1ebft c\u00e1c tr\u01b0\u1eddng h\u1ee3p, c\u01b0\u1eddng \u0111\u1ed9 d\u00f2ng \u0111i\u1ec7n ch\u1ea1y qua qu\u00e1 tr\u00ecnh ph\u00f3ng \u0111i\u1ec7n t\u0129nh c\u1ef1c k\u1ef3 th\u1ea5p, do \u0111\u00f3 kh\u00f4ng g\u00e2y ra nh\u1eefng lo ng\u1ea1i \u0111\u00e1ng k\u1ec3 v\u1ec1 an to\u00e0n. Tuy nhi\u00ean, trong m\u1ed9t s\u1ed1 t\u00ecnh hu\u1ed1ng, \u0111i\u1ec7n gi\u1eadt t\u0129nh \u0111i\u1ec7n v\u1eabn c\u00f3 th\u1ec3 g\u00e2y nguy hi\u1ec3m.<\/p>\n

M\u00f4i tr\u01b0\u1eddng d\u1ec5 ch\u00e1y: Tia l\u1eeda do t\u0129nh \u0111i\u1ec7n t\u1ea1o ra c\u00f3 th\u1ec3 g\u00e2y ch\u00e1y n\u1ed5 trong m\u00f4i tr\u01b0\u1eddng ch\u1ee9a h\u01a1i, kh\u00ed ho\u1eb7c b\u1ee5i d\u1ec5 b\u1eaft l\u1eeda.<\/p>\n

Thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed nh\u1ea1y c\u1ea3m: C\u00e1c linh ki\u1ec7n \u0111i\u1ec7n t\u1eed d\u1ec5 b\u1ecb h\u01b0 h\u1ecfng do ph\u00f3ng \u0111i\u1ec7n t\u0129nh \u0111i\u1ec7n. V\u00ec v\u1eady, vi\u1ec7c b\u1ea3o v\u1ec7 ch\u1ed1ng t\u0129nh \u0111i\u1ec7n l\u00e0 v\u00f4 c\u00f9ng quan tr\u1ecdng trong qu\u00e1 tr\u00ecnh s\u1ea3n xu\u1ea5t v\u00e0 x\u1eed l\u00fd m\u1ecdi c\u1ee5m linh ki\u1ec7n \u0111i\u1ec7n t\u1eed.<\/p>\n

Nh\u1eefng ng\u01b0\u1eddi m\u1eafc c\u00e1c v\u1ea5n \u0111\u1ec1 v\u1ec1 s\u1ee9c kh\u1ecfe ho\u1eb7c \u0111\u01b0\u1ee3c c\u1ea5y gh\u00e9p thi\u1ebft b\u1ecb h\u1ed7 tr\u1ee3 \u0111i\u1ec1u tr\u1ecb (ch\u1eb3ng h\u1ea1n nh\u01b0 m\u00e1y t\u1ea1o nh\u1ecbp tim nh\u00e2n t\u1ea1o) ch\u1ec9 b\u1ecb \u1ea3nh h\u01b0\u1edfng b\u1edfi hi\u1ec7n t\u01b0\u1ee3ng ph\u00f3ng \u0111i\u1ec7n t\u0129nh trong nh\u1eefng tr\u01b0\u1eddng h\u1ee3p \u0111\u1eb7c bi\u1ec7t.<\/p>\n

5 v\u00ed d\u1ee5 ph\u1ed5 bi\u1ebfn v\u1ec1 t\u0129nh \u0111i\u1ec7n trong cu\u1ed9c s\u1ed1ng h\u1eb1ng ng\u00e0y<\/h2>\n

T\u0129nh \u0111i\u1ec7n l\u00e0 m\u1ed9t hi\u1ec7n t\u01b0\u1ee3ng t\u1ef1 nhi\u00ean c\u00f3 th\u1ec3 x\u1ea3y ra \u1edf b\u1ea5t c\u1ee9 \u0111\u00e2u v\u00e0 b\u1ea5t c\u1ee9 l\u00fac n\u00e0o. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 n\u0103m t\u00ecnh hu\u1ed1ng ho\u1eb7c tr\u1ea3i nghi\u1ec7m m\u00e0 h\u1ea7u h\u1ebft m\u1ecdi ng\u01b0\u1eddi \u0111\u1ec1u t\u1eebng g\u1eb7p ph\u1ea3i hi\u1ec7n t\u01b0\u1ee3ng t\u0129nh \u0111i\u1ec7n trong cu\u1ed9c s\u1ed1ng h\u1eb1ng ng\u00e0y:<\/p>\n

Khi b\u1ea1n ch\u00e0 m\u1ed9t qu\u1ea3 b\u00f3ng bay l\u00ean \u0111\u1ea7u, ma s\u00e1t s\u1ebd t\u1ea1o ra t\u0129nh \u0111i\u1ec7n khi\u1ebfn t\u00f3c b\u1ea1n d\u1ef1ng \u0111\u1ee9ng l\u00ean, \u0111\u1ed3ng th\u1eddi l\u00e0m qu\u1ea3 b\u00f3ng bay d\u00ednh v\u00e0o t\u01b0\u1eddng b\u00ea t\u00f4ng nh\u1edd l\u1ef1c h\u00fat t\u0129nh \u0111i\u1ec7n.<\/p>\n

T\u0129nh \u0111i\u1ec7n c\u00f3 th\u1ec3 g\u00e2y ra m\u1ed9t \u0111\u1ee3t ph\u00f3ng n\u0103ng l\u01b0\u1ee3ng ng\u1eafn, \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 ph\u00f3ng \u0111i\u1ec7n t\u0129nh. N\u1ebfu b\u1ea1n \u0111i tr\u00ean th\u1ea3m, sau \u0111\u00f3 ch\u1ea1m v\u00e0o tay n\u1eafm c\u1eeda b\u1eb1ng kim lo\u1ea1i, b\u1ea1n c\u00f3 th\u1ec3 b\u1ecb \u0111i\u1ec7n gi\u1eadt.<\/p>\n

Qu\u1ea7n \u00e1o b\u1ecb d\u00ednh t\u0129nh \u0111i\u1ec7n: Sau khi s\u1ea5y kh\u00f4, qu\u1ea7n \u00e1o th\u01b0\u1eddng t\u00edch t\u1ee5 t\u0129nh \u0111i\u1ec7n v\u00e0 d\u00ednh v\u00e0o nhau. Hi\u1ec7n t\u01b0\u1ee3ng n\u00e0y x\u1ea3y ra th\u01b0\u1eddng xuy\u00ean h\u01a1n v\u1edbi c\u00e1c lo\u1ea1i v\u1ea3i t\u1ed5ng h\u1ee3p (kh\u00f4ng ph\u1ea3i cotton) so v\u1edbi nh\u1eefng lo\u1ea1i v\u1ea3i kh\u00e1c.<\/p>\n

\u0110i\u1ec7n t\u00edch t\u0129nh t\u1ea1o ra tia s\u00e9t: \u0110i\u1ec7n t\u00edch t\u0129nh t\u00edch t\u1ee5 trong c\u00e1c c\u01a1n b\u00e3o v\u00e0 \u0111\u1ea1t \u0111\u1ebfn m\u1ee9c t\u1ea1o ra tia s\u00e9t khi c\u00e1c \u0111i\u1ec7n t\u00edch ph\u00f3ng ra.<\/p>\n

B\u1ee5i t\u00edch t\u1ee5: Tivi c\u0169ng nh\u01b0 m\u00e0n h\u00ecnh m\u00e1y t\u00ednh th\u01b0\u1eddng d\u1ec5 b\u1ecb b\u00e1m b\u1ee5i do \u0111i\u1ec7n t\u00edch t\u0129nh h\u00ecnh th\u00e0nh tr\u00ean b\u1ec1 m\u1eb7t m\u00e0n h\u00ecnh, khi\u1ebfn c\u00e1c h\u1ea1t b\u1ee5i b\u1ecb h\u00fat v\u00e0o b\u1ec1 m\u1eb7t tivi ho\u1eb7c m\u00e0n h\u00ecnh \u0111\u00e3 t\u00edch \u0111i\u1ec7n.<\/p>\n

C\u00e1ch ph\u00f2ng tr\u00e1nh ho\u1eb7c gi\u1ea3m thi\u1ec3u \u0111i\u1ec7n gi\u1eadt t\u0129nh \u0111i\u1ec7n<\/h2>\n

N\u1ebfu b\u1ea1n c\u1ea3m th\u1ea5y nh\u1eefng c\u00fa gi\u1eadt t\u0129nh \u0111i\u1ec7n g\u00e2y phi\u1ec1n to\u00e1i h\u01a1n l\u00e0 th\u00fa v\u1ecb, c\u00f3 m\u1ed9t s\u1ed1 c\u00e1ch gi\u00fap gi\u1ea3m thi\u1ec3u hi\u1ec7n t\u01b0\u1ee3ng n\u00e0y:<\/p>\n