biomimicry_program_guide_final good.doc

8/10/2019 biomimicry_program_guide_final GOOD.doc

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Biomimicry: From Nature to Nanotech

Organization: University of Wisconsin-Madison (UW)Materials Research Science and Engineering Center(MRSEC)

Contact person: racy !" #$ccinelliContact infor%ation: tstefone&'isc"ed$

General DescriptionTable top activity

isitors ill engage in activities shoing vario$s nat$ral pheno%ena thatscientists and engineers have e%$lated to address h$%an pro*le%s"

isitors vie peacoc& feathers at di+erent angles to see iridescence, applydrops of ater to o*serve the color changes, and loo& at other ea%ples ofiridescence in nat$re, s$ch as a *l$e Morpho *$tter.y, tropical *eetle ings,and a*alone shells" isitors also eplore the /ot$s E+ect *y applying dropsof ater onto /ot$san paint and stain resistant fa*rics, to technologies that%i%ic the /ot$s e+ect" 0 .ip-*oo& shos ea%ples of iridescence and the/ot$s e+ect, as ell as %icroscopic and scanning electron %icroscope (SEM)i%ages" isitors can ta&e ho%e a peacoc& feather and a ryhis1 carddescri*ing iridescence and an activity to do at ho%e"

Program Objectives

Big idea: 2io%i%icry is de3ned as i%itating nat$re4s *est ideas to solveh$%an pro*le%s" Many advances in nanotechnology and c$rrent research$se nat$re as inspiration"

Learning goals:0s a res$lt of participating in this progra%, visitors ill *e a*le to:

5" Understand that *io%i%icry is i%itating nat$re4s *est ideas to solveh$%an pro*le%s

6" Understand that nano %eans really, really s%all" So s%all yo$ cannotsee it" hings *ehave di+erently hen they are this s%all"

7" Understand that nano sized things are in %any places, incl$ding in

nat$re"8" Understand that n$%ero$s nanotechnologies have *een inspired *y

nat$re" (*io%i%icry)9" hin& of other things in nat$re that e co$ld $se as inspiration to

solve a h$%an pro*le%"

N!" Net#or$ content map main ideas:

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mailto:[email protected]:[email protected]


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; < 5" =ano%eter-sized things are very s%all, and often *ehavedi+erently than larger things do"

; < 6" Scientists and engineers have for%ed the interdisciplinary3eld of nanotechnology *y investigating properties and %anip$lating%atter at the nanoscale"

; < 7" =anoscience, nanotechnology, and nanoengineering lead to ne&noledge and innovations that eren4t possi*le *efore" < 8" =anotechnologies have costs, ris&s, and *ene3ts that a+ect

o$r lives in ays e cannot alays predict"

National !cience "ducation !tandards: ;< 5" Science as >n?$iry

; < @-8: 0*ilities necessary to do scienti3c in?$iry ; < @-8: Understanding a*o$t scienti3c in?$iry ; < 9-A: 0*ilities necessary to do scienti3c in?$iry ; < 9-A: Understanding a*o$t scienti3c in?$iry ; < B-56: 0*ilities necessary to do scienti3c in?$iry

; < B-56: Understanding a*o$t scienti3c in?$iry

;< 6" #hysical Science ; < @-8: #roperties of o*ects and %aterials < @-8: #osition and %otion of o*ects < @-8: /ight, heat, electricity, and %agnetis% ; < 9-A: #roperties and changes of properties in %atter < 9-A: Motions and forces < 9-A: ransfer of energy < B-56: Str$ct$re of ato%s ; < B-56: Str$ct$re and properties of %atter < B-56: Che%ical reactions < B-56: Motions and force < B-56: Conservation of energy and increase in disorder < B-56: >nteractions of energy and %atter

< 7" /ife Science

< @-8: Characteristics of organis%s < @-8: /ife cycles of organis%s < @-8: Organis%s and environ%ents < 9-A: Str$ct$re and f$nction in living syste%s < 9-A: Reprod$ction and heredity < 9-A: Reg$lation and *ehavior < 9-A: #op$lations and ecosyste%s < 9-A: Diversity and adaptations of organis%s < B-56: he cell < B-56: Molec$lar *asis of heredity < B-56: 2iological evol$tion < B-56: >nterdependence of organis%s < B-56: Matter, energy, and organization in living syste%s < B-56: 2ehavior of organis%s

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< 8" Earth and Space Science

< @-8: #roperties of earth %aterials < @-8: O*ects in the s&y < @-8: Changes in earth and s&y < 9-A: Str$ct$re of the earth syste% < 9-A: Earths history

< 9-A: Earth in the solar syste% < B-56: Energy in the earth syste% < B-56: Feoche%ical cycles < B-56: Origin and evol$tion of the earth syste% < B-56: Origin and evol$tion of the $niverse

;< 9" Science and echnology ; < @-8: 0*ilities to disting$ish *eteen nat$ral o*ects and o*ects

%ade *y h$%ans ; < @-8: 0*ilities of technological design ; < @-8: Understanding a*o$t science and technology ; < 9-A: 0*ilities of technological design

; < 9-A: Understanding a*o$t science and technology ; < B-56: 0*ilities of technological design ; < B-56: Understanding a*o$t science and technology

;< G" #ersonal and Social #erspectives < @-8: #ersonal health < @-8: Characteristics and changes in pop$lations < @-8: ypes of reso$rces < @-8: Changes in environ%ents < @-8: Science and technology in local challenges < 9-A: #ersonal health < 9-A: #op$lations, reso$rces, and environ%ents < 9-A: =at$ral hazards < 9-A: Ris&s and *ene3ts < 9-A: Science and technology in society < B-56: #ersonal and co%%$nity health < B-56: #op$lation groth < B-56: =at$ral reso$rces < B-56: Environ%ental ?$ality < B-56: =at$ral and h$%an-ind$ced hazards ; < B-56: Science and technology in local, national, and glo*al

challenges

< H" Iistory and =at$re of Science

< @-8: Science as a h$%an endeavor < 9-A: Science as a h$%an endeavor < 9-A: =at$re of science < 9-A: Iistory of science < B-56: Science as a h$%an endeavor < B-56: =at$re of scienti3c &noledge < B-56: Iistorical perspective

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Table o% &ontents

General Description...........................................................................................................................................1

Program Objectives............................................................................................................................................1=ational Science Ed$cation Standards:......................................................................................................2

Table o% &ontents.................................................................................................................................................4

Time 'e(uired........................................................................................................................................................5

Bac$ground n%ormation.................................................................................................................................5

)aterials...................................................................................................................................................................8

!et *p.........................................................................................................................................................................9Step 5:......................................................................................................................................................................9Step 6:......................................................................................................................................................................9Step 7:......................................................................................................................................................................9Step 8:......................................................................................................................................................................9Step 9:....................................................................................................................................................................10Step G:....................................................................................................................................................................10

Program Delivery...............................................................................................................................................10Safety:.....................................................................................................................................................................10#roced$re and Disc$ssionJa*le op:......................................................................................................10Step 5:....................................................................................................................................................................10Step 6:....................................................................................................................................................................10Step 7:....................................................................................................................................................................10Step 8:....................................................................................................................................................................11Step 9:....................................................................................................................................................................11Step G:....................................................................................................................................................................12Step H:....................................................................................................................................................................12Step A:....................................................................................................................................................................12

ips and ro$*leshooting:...............................................................................................................................12Co%%on isitor K$estions.............................................................................................................................12Foing L$rther...................................................................................................................................................12

&lean *p..................................................................................................................................................................13

*niversal Design................................................................................................................................................14

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Time 'e(uired

Set-$p #rogra% Clean Up

9 %in$tes 9 %in$tes 9 %in$tes

Bac$ground n%ormation

De+nition o% terms

Nanois the scienti3c ter% %eaning one-*illionth (5N5,,,)" >t

co%es fro% a Free& ord %eaning Pdarf"Q

0 nanometeris one one-*illionth of a %eter" One inch e?$als 69"8 %illionnano%eters" 0 sheet of paper is a*o$t 5, nano%eters thic&" 0 h$%anhair %eas$res ro$ghly 9, to 5, nano%eters across" o$r3ngernails gro one nano%eter every second"

(Other $nits can also *e divided *y one *illion" 0 single *lin& of an eye isa*o$t one-*illionth of a year" 0n eye*lin& is to a year hat a nano%eter is toa yardstic&")

Nanoscalerefers to %eas$re%ents of 5 5 nano%eters" 0 vir$s is a*o$tH n% long" 0 cell %e%*rane is a*o$t B n% thic&" en hydrogen ato%s area*o$t 5 n%"

0t the nanoscale, %any co%%on %aterials ehi*it $n$s$al properties, s$chas re%ar&a*ly loer resistance to electricity, or faster che%ical reactions"

Nanotechnologyis the %anip$lation of %aterial at the nanoscale to ta&eadvantage of these properties" his often %eans or&ing ith individ$al%olec$les"

Nanoscience, nanoengineeringand other s$ch ter%s refer to those activitiesapplied to the nanoscale" P=ano,Q *y itself, is often $sed as short-hand torefer to any or all of these activities"

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Program,speci+c bac$ground2io%i%icry2io%i%icry is i%itating nat$re4s *est ideas to address h$%an pro*le%s" heactivities in this progra% highlight a fe of the nat$ral processes thatscientists and engineers in ind$stry have already %i%ic&ed" =$%ero$s

pheno%ena in nat$re have the potential to *e e%$lated to solve otherh$%an pro*le%s"

>ridescence>ridescence is a rain*o-li&e coloration that changes colors hen yo$ loo& atit fro% di+erent angles" >ridescence can *e fo$nd nat$rally in plants andani%als for ca%o$.age, attracting %ates, and attracting pollinators" hisiridescence res$lts fro% %icro and nanoscopic, transl$cent repeatingstr$ct$res that selectively 3lter and re.ect light" he spacing *eteenstr$ct$res deter%ines the color that is re.ected *ac& and that e see"When e vie an iridescent o*ect at di+erent angles, e see di+erent

colors *eca$se light re.ects *ac& to $s at di+erent angles"

he colors in %any plants and ani%als res$lt fro% $nderlying pig%ent,hich is a s$*stance that selectively a*sor*s light at so%e avelengths andre.ects it in others" (isi*le hite light is %ade $p of di+erent colors thatcorrespond to speci3c avelengths" More infor%ation on visi*le light is inthe PFoing L$rtherQ section near the end") Ioever, colors that are onlypig%ent-*ased do not change hen e vie the% fro% di+erent angles" 0si%ple %ethod to sho the di+erence *eteen pig%ent and iridescence isto co%pare a real Morpho *$tter.y andNor peacoc& feather to a la%inatedpict$re of a Morpho *$tter.y andNor peacoc& feather" he real o*ect shos

iridescence (str$ct$ral color), *$t the pict$re is only pig%ent" he act$aliridescent ea%ple (*$tter.y or feather) ill change color hen yo$ vie itat di+erent angles" he pig%ented photo ill not change color hen yo$vie it at di+erent angles"

Ea%ples of iridescence in nat$re incl$de so%e .oer petals (s$ch as 2l$e2edder), so%e *$tter.ies (s$ch as the *l$e Morpho) and %oth ings, *eetleing cases, and the feathers of h$%%ing*irds, peacoc&s, and *irds ofparadise"

hro$gh *io%i%icry of iridescence, scientists have enhanced their st$dy of

photonics and created holographic i%ages" >n fact, iridescence fo$nd innat$re is said to *e nat$ral photonic crystals" #hotonic crystals created inthe la* *y scientists also have repeating nanostr$ct$res and can selectively3lter light" Iolographic i%ages are co%%only $sed on c$rrency for sec$rityp$rposes (the i%ages cannot *e photocopied), and photonic engineering is$sed in a variety of applications, incl$ding neer co%p$ter screens" C$rrentand f$t$re potential nanotechnologies inspired *y iridescence incl$de:

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Manip$lating nanoires ith holographics

=$%ero$s photonics applications s$ch as co%p$ter screens, lightso$rces, optical sensors, electronic devices, se%icond$ctors, thin 3l%optics

her%ochro%atic paints (#aints that change color at di+erent

te%perat$res) ario$s li?$id crystal applications, s$ch as electronic displays (/CDsJ

li?$id crystal displays, ther%o%eters, se%icond$ctors, lasers)

he /ot$s E+ect0nother pheno%enon in nat$re is the /ot$s E+ect" he lot$s leaf s$rfacehas nano and %icro scale feat$res, along ith a ay non-polar coating"ogether these create a s$perhydropho*ic (very ater repelling) s$rface"he lot$s leaf is said to *e Pself-cleaningQ *eca$se as droplets of ater rollo+, they ta&e dirt particles ith the%" Foing f$rther, this portion of theprogra% can also *e $sed to eplain the ter%s hydrophilic, hydropho*ic, and

s$perhydropho*ic" (See *elo)

2io%i%icry of the /ot$s E+ect has inspired several ne nanotechnologiesith a variety of applications" Lor ea%ple, the folloing are *roadcategories of potential $se for nano s$rfaces that %i%ic the /ot$s E+ect:

0nti*acterial %aterials

Stain resistance

Water repelling %aterials

Self-cleaning %aterials

0nti-adhesive %aterials #rotection against scratching

#rotection against eathering

Ea%ples of *io%i%icry of the /ot$s E+ect c$rrently on the %ar&et incl$de aself-cleaning eterior paint (/ot$san), and fa*rics, s$ch as =anote" he%an$fact$rers of these clai% that nanotechnology is $sed to create theirprod$cts" Recently, 0von has created a ne hair prod$ct (/ot$s Shield) thatclai%s to %i%ic the /ot$s e+ect and prevent frizziness" (Ioever, 0vondoes not clai% the prod$ct speci3cally res$lts fro% nanotechnology")

>nteraction of ater on s$rfacesHydrophilic%eans ater PlovingQ, and refers to s$rfaces that are polar"

Water droplets are .at or less ro$nded, and ill so%eti%es spread very thin

or even a*sor* into the %aterial" Water on hydrophilic s$rfaces often leaves

a strea& of ater hen rolling o+ the s$rface"

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Hydrophobic%eans ater PfearingQ, and refers to s$rfaces that repel ater

and are non-polar" Water droplets on hydropho*ic s$rfaces *ead $p and

stay ro$nded"

Superhydrophobic%eans ER ater PfearingQ, and refers to s$rfaces that

are non-polar and %ay have nanoscale s$rface feat$res" Water droplets ons$perhydropho*ic s$rfaces roll o+ hen the s$rface is at a 5T or greater

angle" Water droplets are also very ro$nded and have a contact angle

greater than 59T" he /ot$s leaf is an ea%ple of a s$perhydropho*ic

s$rface fo$nd in nat$re"

References

0garal R, /adavac @, Roich%an , $ F, /ie*er C, Frier D" Manip$lation andasse%*ly of nanoires ith holographic optical traps" Opt Epress"6957(66):ABG-56"

Dragon.y nano, Ed$cator4s F$ide Season H"

Lor*es, #eter" Self-cleaning %aterials" Scienti3c 0%erican 6BB(6) (6A)"http:NNins$rftech"co%NdocsNlin&sNRelated-#apersN0rticle-5-Scienti3c-0%erican-Self-Cleaning-Materals-/ot$s-E+ect"pdf"

Maia R, Caetano !, 2ao S=, Macedo RI" >ridescent str$ct$ral colo$rprod$ction in %ale *l$e-*lac& grass?$it feather *ar*$les: the role of &eratinand %elanin" ! R Soc >nterface" 6BG S$ppl 6:S67-55"

Whitney, Ieather M" et al" Lloral >ridescence 0cts 0s a C$e for 0ni%al#ollinators, #rod$ced *y Di+ractive Optics,Science 767, 57 (6B) DO>:5"556GNscience"55GG69G"

)aterials

Llip *oo&:

Llip *oo&, OVce s$pply stores

>%ages (see P2io%i%icry.ip*oo&3nal"pptQ in separate 3le)

Color printerNpaper

>ridescence de%o: Shells, *eetle ings, and *l$e %orpho *$tter.y

o 0*alone shells:http:NN"seashellcity"co%NseashellsNpearlizediridescentshells"ht%l

A
http://www.seashellcity.com/seashells/pearlized_iridescent_shells.htmlhttp://www.seashellcity.com/seashells/pearlized_iridescent_shells.htmlhttp://www.seashellcity.com/seashells/pearlized_iridescent_shells.htmlhttp://www.seashellcity.com/seashells/pearlized_iridescent_shells.html


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o 2$rnies Roc& Shop >nc", B5 E" !ohnson Street, Madison, W>97H7-5G65, "*$rniesroc&shop"co%, #hone: (GA) 695-6G5,La: (GA) 6GA-569B, *$rniesroc&shop'g%ail"co%"

o Can also try e2ay or other roc& and %ineral shops

#eacoc& feathers

o /a%plight feather >nc, http:NN"tonyhill"netN , nat$ral ShortStal& #eacoc& Eyes (can set $p a holesale acco$nt to save afe cents per feather if p$rchasing in *$l&)

S%all c$p

Water

#lastic pipettes (5-6)

#aper toels

ry his1 CardJprint 6-sided on cardstoc& $sing 3le:ryhisiridescence 3nal"ppt

/ot$s e+ect de%o:

/ot$san and late paint sa%ples (Can re?$est sa%ples fro%: StoCorp" StoCoat /ot$sanX: he Eterior coating ith /ot$s-E+ectX"http:NN"stocorp"co%) >f yo$ are $na*le to o*tain sa%ples, cansho pict$res in .ip *oo& instead"

Cotton cloth, c$t into s%all s?$areso White %en4s $ndershirts or& very ell, loo& for 5Y cotton

Stain resistant cotton cloth, c$t into s%all s?$areso Depart%ent stores (e"g",, @ohl4s) that carry stain-resistant pants

(c$tthe pants into s%all s?$ares)

o http:NN"nano-te"co%Nco%panyN*randpartners"ht%llistshere =anote fa*rics can *e p$rchased

ario$s plant %aterials (optional, not easy to travel ith)o o sho /ot$s e+ect: Elephant Ear leaves, *roccoli leaves,

nast$rti$% leaves, &ale, or collard greenso Co%pare to: /ett$ces

6 S%all c$ps

Water #lastic pipettes (6-7)

#aper toels

B
http://www.tonyhill.net/http://www.stocorp.com/http://www.nano-tex.com/company/brand_partners.htmlhttp://www.tonyhill.net/http://www.stocorp.com/http://www.nano-tex.com/company/brand_partners.html


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!et *pTime: - minutes .once materials are gathered and printing

completed/

!tep 0:#rint desired i%ages, place into plastic protectors in .ip*oo& and set $p onone end of the ta*le" (>%ages in #oer#oint") Can also la%inate colorphotos of peacoc& feathers for co%parison of pig%ent vs" iridescence" (Lor aphoto to la%inate, see separate 3le Ppeacoc& feather eye"pgQ") #rintryhis1 cards"

!tep 1:Set $p ea%ples of iridescence together as a gro$p" (shells, tropical *eetleings, *l$e Morpho *$tter.y, peacoc& feather, la%inated color pict$re ofpeacoc& feather)

!tep 2:Set $p one peacoc& feather, one la%inated pict$re of a peacoc& feather, oneplastic pipette, one s%all glass of ater"

!tep 3:Optional: Set $p one sa%ple of acrylic paint, one sa%ple of /ot$san paint,one plastic pipette, and one s%all glass of ater" We have fo$nd that/ot$san paint does not consistently ehi*it s$perhydropho*icity" his can *ean opport$nity for disc$ssion" (=ote: for classroo% $se, this step sho$ld *eeli%inated d$e to s%all ?$antities of sa%ples")

!tep -:Set $p one piece of cotton fa*ric, one piece of stain-resistant fa*ric, oneplastic pipette, and one s%all glass of ater" (#lant %aterials can *e set $phere, too")

!tep 4:#lace a stac& of ryhis1 cards at end of ta*le aay fro% ater"

Program DeliveryTime: - minutes

!a%ety:0s& yo$r a$dience if anyone is allergic to feathers"

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Procedure and Discussion5Table Top:

!tep 0:Engage visitors1 he peacoc& feathers dra people in, as does the *ea$tif$l*l$e Morpho *$tter.y" When visitors approach, start *y 3nding o$t their

*ac&gro$nds, e"g", do they &no hat iridescence isZ

Iand yo$r ea%ples of iridescence fo$nd in nat$re to the visitors toea%ine" (shells, tropical *eetle ings, *l$e Morpho *$tter.y, peacoc&feather)

!tep 1:o eplain iridescence (hile the visitors are loo&ing at the ea%ples),descri*e it as a rain*o-li&e color here the colors change depending on theangle yo$ loo& at it" >f yo$ have a partic$larly science-savvy a$dience, yo$co$ld also say that the iridescence is d$e to %icro and nanoscopic,transl$cent str$ct$res that selectively 3lter and re.ect light" he spacing*eteen the str$ct$res deter%ines the color that is re.ected *ac& and thate see"

Start going thro$gh the .ip*oo& ith the%, shoing the 3rst fe pages oniridescence" (his sho$ld *e very ?$ic& ith an e%phasis on ea%ining thehands-on ea%ples")

!tep 2:Iave yo$r visitor pic& $p the peacoc& feather and as& the% to o*serve hat

happens hen they loo& at the feather fro% di+erent angles" (So%eti%es ithelps if yo$ pic& $p another feather and sho the% ho to loo& at it at thesa%e ti%e") F$ide the% toard an anser close to iridescence" Eplainiridescence once again, and that nano str$ct$res deter%ine the colors esee, not pig%ent"

!tep 3:Use the .ip*oo& pict$res to eplain iridescence f$rther and sho ea%plesof *io%i%icry" Refer to the SEM i%age of peacoc& feathers in the .ip*oo& tosho nanostr$ct$res" 0lso, co%pare the real peacoc& feather to the colorphoto of it in the .ip*oo&" 0s& the visitor to loo& at the to feathers (real

and photocopies) fro% di+erent angles and %a&e o*servations" Wor&toard a disc$ssion ith the% that the real feather is iridescent, *$t thecolor photo of the feather is pig%ent only and therefore does not have thenanostr$ct$res re?$ired for iridescence" (he sa%e can *e done ith the2l$e Morpho *$tter.y") Relate this to holographic i%ages for sec$rityp$rposes on c$rrency" Str$ct$ral 7D i%ages cannot *e photocopied"

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!tep -:Iave the% dra $p a s%all a%o$nt of ater into the pipette, and drop a fedrops on only one half of the eye of the peacoc& feather" (#ipettes are nefor %any visitors, so yo$ %ight need to de%onstrate ho to $se a one") ellthe% to gently ipe the ater don that half of the feather" 0s& the% hat

they see" his is hat yo$ sho$ld see (the right side is et):

>s there a di+erence in colorZ WhyZ Lor co%parison, visitors can also dropater on a la%inated color photo of a peacoc& feather (or $se the .ip *oo&photo)" =OE: Scientists are c$rrently cond$cting eperi%ents todeter%ine hat eactly happens hen ater is dropped onto peacoc&feathers" Lor no, they generally theorize that ater 3lls the spaces*eteen the str$ct$res, slightly changing the angle that light is re.ected

*ac&, and th$s the color"

Depending on ti%e, and the visitor4s interest level and science *ac&gro$nd,yo$ co$ld eplain hat visi*le light is and that the ater changes the aythe light re.ects *ac& at $s" (>t is re.ecting *ac& at a di+erent angle") hischanges the color e see" 0lso eplain ho this is di+erent fro% $stpig%ent" #ig%ents alone do not change color hen vieed fro% di+erentangles" 0 pig%ent a*sor*s all colors of light ecept the one it re.ects *ac&,hich is the color e see" o$ can sho a piece of paper ith color printing,or color paper ith crayons to ill$strate pig%ent" (>f yo$ have la%inatedcolor pict$res, those can also *e $sed here")

!tep 4:Iave the visitor drop one drop of ater on the acrylic paint sa%ple and onedrop of ater on the /ot$san paint sa%ple" 0s& the% to loo& closely at theshape of the ater drop" Do they see a di+erenceZ /ot$san paint clai%s to*e self-cleaning, si%ilar to the lot$s leaf" Do yo$ agree ith their clai%ZIold the sa%ples at an angle" Does the ater roll o+ either sa%pleZ Sharethe re%ainder of the .ip*oo& descri*ing the /ot$s E+ect ith the visitor" (>f

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yo$ ere a*le to *ring plant %aterials, have the visitor p$t drops of ateron vario$s plant %aterials" o sho the /ot$s e+ect $se: Elephant Earleaves, *roccoli leaves, nast$rti$% leaves, &ale, or collard greens, andco%pare to lett$ces")

!tep 6:Iave the visitor drop one drop of ater on the piece of cotton and one dropof ater on the stain resistant cotton fa*ric" ell the% that *oth fa*rics arecotton" Iave the% loo& closely at the shape of the ater drop" Do they seea di+erenceZ 0s& the% to grasp the edges of each piece of fa*ric and %oveit aro$nd" What happensZ What does that re%ind the visitor ofZ Does thestain resistant fa*ric %i%ic the /ot$s e+ectZ

!tep 7:Five yo$r visitor the peacoc& feather they dropped ater onto and oneryhis1 card" Eplain that the ryhis1 card is an iridescence activity they

can try at ho%e"

Tips and Troubleshooting:o *e %ore eVcient ith large gro$ps, set o$t stations apart fro% oneanother so that %$ltiple visitors can engage si%$ltaneo$sly"

Only set o$t one peacoc& feather, one sa%ple of cotton, and one sa%ple ofstain-resistant fa*ric at a ti%e" Replace ith fresh dry %aterials as needed"

he paint sa%ples can *e *lotted dry ith paper toel in *eteen visitors"

&ommon 8isitor 9uestionso# many peacoc$s #ere sacri+ced so you could obtain %eathers;=one, peacoc&s nat$rally shed their feathers once per year"


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(see pict$re on right), and o$r eyes can no longer disting$ish the di+erentcolors" h$s, e see all the colors together as hite"

=eton4s Color Wheel

Stationary Spinning

#ict$res fro% Wolfra%4s De%onstration #roecthttp:NNde%onstrations"olfra%"co%N=etonsColorWheelN

Iere are so%e reso$rces yo$ can share ith yo$r visitors:

!olar photovoltaic holographic technologyhttp:NN"advancedsolarphotonics"co%NtechnologyNholographic-technologyN

&lean *pTime: -,0> minutesCaref$lly place everything *ac& into a dedicated *in, rapping *rea&a*le

ite%s (s$ch as shells, *$tter.y ings)" Discard leftover ater (orpo$r *ac& into ater *ottle) and dry the c$ps" /eave et fa*ric,peacoc& feathers, and pipettes o$t to dry *efore p$tting aay"

*niversal Designhis progra% has *een designed to *e incl$sive of visitors, incl$ding visitors

of di+erent ages, *ac&gro$nds, and di+erent physical and cognitivea*ilities"

To give an inclusive presentation o% this program:

58
http://demonstrations.wolfram.com/NewtonsColorWheel/http://www.advancedsolarphotonics.com/technology/holographic-technology/http://www.advancedsolarphotonics.com/technology/holographic-technology/http://demonstrations.wolfram.com/NewtonsColorWheel/http://www.advancedsolarphotonics.com/technology/holographic-technology/http://www.advancedsolarphotonics.com/technology/holographic-technology/


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5" his progra% has *een designed to *e incl$sive of visitors,incl$ding visitors of di+erent ages, *ac&gro$nds, and di+erent physicaland cognitive a*ilities"

6" S$pplies for the hands-on activities sho$ld *e arranged toacco%%odate visitors of all a*ilities"

7" #rint o$ts of presentation slidesN.ip *oo& graphics can *e providedto the visitors"

The %ollo#ing %eatures o% the program?s design ma$e it accessible:

;< 5" Repeat and reinforce %ain ideas and concepts

a" he overarching %ain idea is presented at the *eginning of

the progra%, and reinforced *y the hands-on activities"

*" he progra% provides ver*al, vis$al and tactile entry pointsinto the progra%4s %ain %essage and learning o*ectives"

c" he presenter provides a ver*al and vis$al eplanation of thenanoscale and the connection of *io%i%icry andnanotechnology" he hands-on activities provide a tactileeplanation of the connections *eteen nanotechnology and*io%i%icry"

d" he size of the nanoscale is conveyed ver*ally and vis$allyd$ring the presentation thro$gh interpersonal interactions andgraphics on the slides"

e" he di+erences in ho nanoscale things *ehave areeplained ver*ally and vis$ally (in the presentation slides andthro$gh the co%parison of pig%ented photos vs" nano-str$ct$red color in nat$re)"

f" he ta&e-aay card reinforces the %ain ideas and conceptsvis$ally and ver*ally"

;< 6" #rovide %$ltiple entry points and %$ltiple ays of engage%ent"

a" he progra% engages visitors ith to (or %ore) hands-onactivities, and a g$ided disc$ssion that helps the% $nderstand*io%i%icry"

;< 7" #rovide physical and sensory access to all aspects of the progra%"

59


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a" he presenter ver*ally eplains and physically de%onstratesall aspects of the hands-on activities"

*" he presenter can vary the pace of the progra% to s$it the

a$dience, providing etra ti%e for or&ing or additionaldisc$ssion hen necessary"

his proect as s$pported *y the =ational Science Lo$ndation $nder 0ards =os"B8587 (=>SE =et) and 9696H (UW MRSEC)" 0ny opinions, 3ndings, andconcl$sions or reco%%endations epressed in this progra% are those of thea$thor and do not necessarily re.ect the vies of the Lo$ndation"

#$*lished $nder a Creative Co%%ons 0ttri*$tion-=onco%%ercial-Share0li&elicense: http:NNcreativeco%%ons"orgNlicensesN*y-nc-saN7"N$sN

biomimicry_program_guide_final good.doc

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