Make Magazine - Volume 11

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IuInI c 11I 3 Im '(m n 'jo
- x Iç l% 1 W I I W

By C harles P latt

People appearsym m etrical,buteven the m ost

perfect hum an face show s irregularities ifw e

com pare the Ieftside w ith the right.Perhaps this

is w hy the absolute,rigid sym m etry ofcrystals

seem s beautifulyetalien to us.U nlike D H A'S

softspiral,a crystal's m olecularbonds align

them selves to fo rm regularthree-dim ensional

structures,w hich the G reeks considered m ath-

em atically pure.T he m ostfundam entalofthese

shapes are know n asthe five Platonic solids.

Ifyou assem ble equal-sided triangles - aIIthe

sam e size,w ith the sam e angles to each other-

you can create three possible solids:a tetrahedron

(w ith 4 faces),anoctahedron (8 faces),and an

icosahedron(20 faces).Ifyouusesquaresinstead

oftriangles,you can create only a hexahed ron,

com m only know n as a cube.Pentagonscreate a

dodecahedron (12 faces),and that'sasfaraswe

cango.hloothersolid objectscan be builtw ithaII-

) identical,equal-sided,equal-angledpolygons.

) ThePlatonicsolidshavealwaysfascinatedme.

E11 hvly favorite isthe dodecahedron w hich is w hy
,

Iused itinthisprojectasthebasisforatableIam p.

) Byextendingitsedgestoform points,wemake

l som ething thatIooks notonly m athem atically

t. perfect,butperhapsaIittlemagical.

/'
1

165

















S kip to the beat of a d iffe re nt d rum m er,elim inate red-eye
the old-schoo lw ay.and Iea rn a bo ut the o rig ins of inventio n.

H op o n W ater

A quaskipper

Here's a new personalw atercraft

' thatdoesn't burn gasoIine,

pollute the w ater,orm ake noise.

.. . .. . .. . It's a hum an-pow ered hydrofoil

P wr. ' ... ornithopter.G otthat?

.

..a . '. ..%.y;:a.L-û'xz.;')V' 'gây-2-rz!)Jy;a.--s=Jzjr.;aXr.'([email protected].%7...7yr+-s It,s a spidery aIum inum

.

-(7-..;'.-...',s.-.J.'Q=.w-.L-J;..u...-'...y'ra'.. .'.vu...=''vz....''....4ct.ws(.p-k..tj'-?*:s.&(.a=oy..:..<z.--..k.'=.r.'s=.y.(yc.:...y0k..;...s'yc.;ï$k(..'yp...g.'g>k.-s-.w'--L:svh..,..nvv...k.:..y.,aoe,-c.-Qw.u-.à.rx...y.ur.':.u'r'.m.L'>.-#-y;..-.cu.gjj=o''-=a7-..s-.w..'rut,usy)'xu-yut..;j..:lw..vszarug.p.y.=y.'.z.u.1s-t.ELl..jp.j..=.èq contraption w ith w ings thatfIy

tj)rotjgjatjaewateraSj?OUIjUIm g)UIg)

and dOW n ()n the pIatform abok'e.

yotjjum pojjadOC;kW itk1itélrld
skim overthetopofthewater.

7'j<.. jy=irs.'v-'z.,. . ' ..'....as..=Js..k.-. .aso.-.W-...w.-=. jjyou'regood enough,you
<-,s, . c . (c- .

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.. .. . yet,you w ipe outand sw im it

r ' 'ê-' back to the dock foranothertry
.

-'
.. . z-'r..j..+ f. . .., It's greatexercise and Iotsoffun.
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l74 .': 11





























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