Ma('t ho.c tro` - lo+`i no'i va` vie^.c la`m

[cpvnet@fmail.vnn.vn (cpvnet)]

Hi ca'c ba'c,
Gu+?i ca'c ba'c nhu+~ng tra(n tro+? ve^` ddo^. sa'ng trong ca'c pho`ng ho.c
VN, theo tui thi` pha?i no'i la` tu+` ... ma^~u gia'o dde^'n ... sau dda.i
ho.c chu+' cha(?ng cu+' ... ca^'p pho^? tho^ng !

Sa'u SG

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* Ma('t ho.c tro` - lo+`i no'i va` vie^.c la`m

-- Nha` tho+ DDo^~ Trung Lai, mu.c Tie^'ng no'i nha` va(n, ba'o Va(n Nghe^.
so^' 32, 7/8/1999

Mo^.t na(m ho.c mo+'i la.i sa('p ba('t dda^`u. Ha`ng trie^.u ho.c tro` VN
tu+o+ng lai se~ tu+.u tru+o+`ng. Thu+.c ra la` the^' ky? 21 tu+.u tru+o+`ng.
The^' ky? 21 ddi ho.c tu+` the^' ky? 20, dde^? chua^?n bi. cho mi`nh. Ca'c
em chi'nh la` the^' ky? 21 cu?a da^n to^.c

La^`n tru+o+'c, to^i dda~ vie^'t : "Ha~y ba('t dda^`u la.i, tu+` gia'o du.c
!"
La^`n na`y, vo^ phe'p Bo^. GD-DT, to^i la.i xin ddu+o+.c ne^u ra dda^y 1
nguy co+ kha'c, 1 nguy co+ sinh ho.c !

- To^i dda~ ddo ddo^. sa'ng tre^n ba`n ho.c, trong pho`ng ho.c cu?a ha`ng
tra(m tru+o+`ng ho.c cu?a chu'ng ta, tu+` Ha` Giang cho to+'i Ca` Mau, thi`
no+i tha^'p nha^'t la` 2 LUX, dda^'y la` o+? Ta^y Nguye^n. No+i cao nha^'t
la` 160 LUX  la` tru+o+`ng PTTH Vie^.t DDu+'c-Ha` No^.i. The^' ma`, tie^u
chua^?n ve^` ddo^. ro.i sa'ng, o+? 1 nu+o+'c pha't trie^?n trung bi`nh nhu+
Ba Lan, la` 100 LUX ta.i pho`ng ho.p va` 200 LUX o+? pho`ng ho.c. Ma` dda^'y
chi'nh la`  tie^u chua^?n cho ngu+o+`i 18 tuo^?i va` kho^ng bi. be^.nh ma('t
dda^'y nhe' !

- Na`y anh ! To^i co' the^? ddoa'n quye^'t ra(`ng o+? toa`n VN na`y chi? co'
3 pho`ng ho.c ma` o+? ddo'  ho.c sinh kho^ng xin tha^`y cho ddo^?i cho^~
ngo^`i vi` va^'n dde^` a'nh sa'ng tho^i nhe' !

Ngoa`i ly' do vu+`a no'i, tu+'c la` va^'n dde^` thie^'u ddo^. ro.i sa'ng,
co`n vi` kho^ng bie^'t thie^'t ke^' a'nh sa'ng nu+~a ! DDa^y na`y ! He^.
tho^'ng dde`n tra^`n thu+o+`ng cao ho+n he^. tho^'ng qua.t tra^`n ! Bo'ng
cu?a ca'nh qua.t tre^n ma(.t ba`n va` ma(.t gia^'y cu?a ho.c tro`, bao gio+`
cu~ng chuye^?n ddo^.ng vo+'i ta^`n so^' nho? ho+n  24 Hz, ga^y mo?i ma('t
cho ca'c em lie^n tu.c. Tra^`n nha` thi` tha^'p, lo+'p ho.c thi` da`i, dde`n
tra^`n va` dde`n treo tre^n ba?ng ki'ch thi'ch ma('t ho.c tro` tru+o+'c khi
chu'ng ddu+o+.c ki'ch thi'ch ba(`ng ne't pha^'n ! DDe`n cuo^'i lo+'p thi`
ki'ch thi'ch ma('t tha^`y co^. The^' la` ai cu~ng cho'i !

Ngoa`i ra, a'nh sa'ng tu+` cu?a so^?, cu+?a ra va`o la`m cho ca'c ta^'m
ba?ng cu?a chu'ng ta dde^`u bi. loa' sa'ng tu+` 1/4  dde^'n toa`n bo^. (!)
tru+` ma^'y chie^'c ba?ng dda~ que't so+n cho^'ng pha?n xa. (ra^'t dda('t,
khoa?ng 2,5 trie^.u ddo^`ng 1 chie^'c). BIe^'t the^', nhu+ng kho' la`m vi`
pha?i co' "chu? tru+o+ng" dda~ chu+' !
Vi` trong ca^'u hi`nh ca'c pho`ng ho.c cu?a ta ra^'t kha'c nhau, ra^'t kho'
thie^'t ke^' ma^~u. Vi` du` theo quy ddi.nh, thi`  5%  dde^'n 10% kinh phi'
xa^y du+.ng tru+o+`ng ho.c la` da`nh cho va^'n dde^` a'nh sa'ng, nhu+ng
thu+? ho?i co' bao nhie^u tru+o+`ng thu+.c hie^.n ?

- Anh bie^'t kho^ng ? Ke^'t qua? la`,  30 % dde^'n 40 % ho.c tro` cu?a ta
pha?i ddeo ki'nh hoa(.c ca^`n pha?i ddeo ki'nh ! So^' lie^.u na`y, Bo^.
GD-DT, Bo^. Y te^' ta kho^ng bie^'t dda^u nhe' !

Ngu+o+`i no'i chuye^.n a^'y vo+'i to^i la` Pho' Tie^'n Si~ nga`nh quang
da^~n  Nguye^~n Va(n Kha?i, 1 trong 2 chuye^n gia ha`ng dda^`u trong vie^.c
nghie^n cu+'u tie^'t kie^.m ddie^.n na(ng chie^'u sa'ng o+? VN hie^.n na`y,
em ruo^.t cu?a Vie^.n si~ Nguye^~n Va(n Hie^.u.

Chu'ng ta thu+o+`ng no'i : "Nhu+~ng gi` to^'t nha^'t, da`nh cho tre? em".
Chu'ng ta cu~ng la` nu+o+'c thu+' 2 tre^n the^' gio+'i ky' va`o co^ng u+o+'c
ve^` quye^`n cu?a tre? em. Lo+`i no'i va` vie^.c la`m cu?a chu'ng ta xa nhau
dde^'n the^' u+ ?

O^i nhu+~ng ddo^i ma('t ho.c tro` ! Na(m ho.c mo+'i la.i dde^'n be^n the^`m
kia ro^`i. Co' da^n to^.c na`o ddang ta^m dde^? 1/3 the^' ky? 21 ca^.n thi.
kho^ng nhi? ?