OCR Text |
Show Water Runs Up the Hill. H It Is easy enough to mako wntcr flow up lilll It you know how. Hpro is a slmplo way of doing It and nt tho HJ samo time performing another feat equally surprising. fl It la a slmplo matter to ompty a bottlo with tho aid of a tumbler, but m to empty a tumbler filled to tho brim with tho aid of a bottlo would scorn m to bo Impossible. If It docs not seem Mj so to you, try It, but remember that la you aro not allowed to uso an ompty jH bottlo. Tho bottlo must bo full nt tho MJ'Uj;JrrY'''-HJ'J'lJiwu:'-'t:j How to Hold the Bottle. 9 start and must romaln full through- n out tho operation and after It, fl Those hard conditions, which np- 9 parcntly render tho tnsk nil tho moro m difficult, aro really what make It pos- fl stblo. H Tho bottlo is filled with wntcr to j tho top of tho neck and corked with 'm a cork borod with two ho.os to which tm glass tubes or stout straws have been M fitted. :m Straight pieces of macaroni will do M for tubes, by tho way. Tho Insertion of the cork Into tho Sat full bottlo will furco water up in both M tubes nnd perhaps causo It to over- H flow from tho short ono. If It does j not, pour water into tho long tube un- S til It flows out of tho shorter ono, H thon close tho latter with tho finger 9 or n bit of wax nnd contlnuo pouring H until tho long tubo Is filled also. H Now, If you Invert tho bottle, keep- IS lng tho short tubo closed, tho pros- Ni Btiro of tho nlr will provont tho water running out ot tho Ions tubo, -j Plungo tho short tubo Into tho full H tumbler, leaving tho long ono outside, B as In tho Illustration, nnd remove tho B finger or wax, as tho caso may bo. At H onco water Hows from tho long tubo K nnd at tho samo time water Is sucked M from tho tumbler up It 111 Into tho bot- ffl itlo through tho short tubo. Tim hot- B ' tlo and tube, you sco, mako n siphon Sj nnd tho uphill flow goos on until tho tt i tumbler is omptlcd, It tho short tubo m 'is long enough to reach tho bottom II of " W Tho instant tho tumblor Is empty romoro tho bottlo nnd turn It right U sido up, thus keeping It full of wnter, W Tho tubes should fit tho boles M tightly. |