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Afrikaans huistaal

Graad 8

Module 1

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AKTIWITEIT 1

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TEKS A

Reksprong, abseil en nou is daar Zorb

Adrenalien-sport deur Charl Rootman (aangepas uit Die Bylae tot Die Burger )

Die mens het oor die eeue heen nog altyd van speel gehou. Baie mense bou hul lewe rondom dié “speletjies” - goed wat ander kwasi-ernstige mense as tydmors beskou.

Dis veral waar vir adrenalienslawe, wat nie altyd mededingend of ekstreem wil wees nie, maar soms ook net pret wil hê. Dis hoe die uitvinders van Zorb by hul idee uitgekom het – om jou daaglikse dosis adrenalien op ’n prettige manier in te kry.

Dink net: jy staan bo-op ’n hoë bult met ’n steil grasperk wat tot dóér onder by ’n dam voor jou uitstrek. Langs jou staan iets wat soos ’n reusagtige ronde bal lyk met ’n tonnel na binne. Jy klim in en sien steeds die mense buite deur die deursigtige wand. Die bal begin stadig rol en jy kry dit reg om saam met die beweging binne-in te loop. Die bal rol ál vinniger, en vinniger, en vinniger. Jy kan nie meer byhou nie en val. Soos die bal teen die steilte afsnel, hop en bons jy rond binne-in, totdat jy skielik in die water onder stop en kan uitklim.

Zorb behels dat jy in iets klim wat soos ’n reusagtige, deurskynende strandbal lyk, en dan teen ’n hoë spoed teen ’n heuwel afrol. Die bal self word ’n Zorb genoem. Dis gemaak van ’n baie sterk, deursigtige PVC-tipe plastiek en bestaan uit twee lae.

Die deursnee van die buitenste bal is net oor die drie meter en dié van die binneste bal amper twee meter. Die gedeelte tussen die twee lae word vol lug gepomp. Die binneste bal vorm dan ’n kamertjie met ’n tonnel na buite waardeur jy inklim. Binne het jy ’n lugkussing van 70 cm dik tussen jou en die grond.

Die bal kan ’n snelheid van tot 50 km bereik, afhangende natuurlik van hoe steil die helling is. Die idee is dat, soos die bal rol, die persoon aan die binnekant – wat ’n Zorbonaut genoem word – teen die kant vasgedruk word as gevolg van middelpuntvliedende krag. ’n Mens val dus nie vreeslik rond nie.

Omdat die Zorb so groot is, roteer dit ook slegs een keer elke 10 m.

Ervare Zorbonauts – waarvan daar al meer as 10 000 in die wêreld is – sê dié rollery is ’n bisarre gevoel, maar dat die stadige rotasie darem verhinder dat jy maklik naar word.

Avontuurlustige Zorbonauts het al talle nuwe uitdagings met hul reuse-strandballe aangepak Soms klim meer as een ryer per keer in die bal, of die Zorb rol bo-oor mense wat in sy pad lê.

Dan is daar ook HydroZorb, waar die bal in die water ingerol word. Die ontwerp veroorsaak dat water nie in die binneste bal of kamer kan inloop nie, en die persoon binne-in kan dus rondrol sonder om nat te word.

Die uitvinders van die Zorb beplan ook om binnekort met ExtremeZorb te begin. Deelnemers sal op interessante maniere met mekaar meeding.

Die Zorb het sy oorsprong in Nieu-Seeland, waar twee entrepreneurs met verskillende ontwerpe geëksperimenteer het totdat hulle by die Zorb uitgekom het.

Questions & Answers

do you think it's worthwhile in the long term to study the effects and possibilities of nanotechnology on viral treatment?
Damian Reply
absolutely yes
Daniel
how to know photocatalytic properties of tio2 nanoparticles...what to do now
Akash Reply
it is a goid question and i want to know the answer as well
Maciej
characteristics of micro business
Abigail
Do somebody tell me a best nano engineering book for beginners?
s. Reply
what is fullerene does it is used to make bukky balls
Devang Reply
are you nano engineer ?
s.
fullerene is a bucky ball aka Carbon 60 molecule. It was name by the architect Fuller. He design the geodesic dome. it resembles a soccer ball.
Tarell
what is the actual application of fullerenes nowadays?
Damian
That is a great question Damian. best way to answer that question is to Google it. there are hundreds of applications for buck minister fullerenes, from medical to aerospace. you can also find plenty of research papers that will give you great detail on the potential applications of fullerenes.
Tarell
what is the Synthesis, properties,and applications of carbon nano chemistry
Abhijith Reply
Mostly, they use nano carbon for electronics and for materials to be strengthened.
Virgil
is Bucky paper clear?
CYNTHIA
so some one know about replacing silicon atom with phosphorous in semiconductors device?
s. Reply
Yeah, it is a pain to say the least. You basically have to heat the substarte up to around 1000 degrees celcius then pass phosphene gas over top of it, which is explosive and toxic by the way, under very low pressure.
Harper
Do you know which machine is used to that process?
s.
how to fabricate graphene ink ?
SUYASH Reply
for screen printed electrodes ?
SUYASH
What is lattice structure?
s. Reply
of graphene you mean?
Ebrahim
or in general
Ebrahim
in general
s.
Graphene has a hexagonal structure
tahir
On having this app for quite a bit time, Haven't realised there's a chat room in it.
Cied
what is biological synthesis of nanoparticles
Sanket Reply
what's the easiest and fastest way to the synthesize AgNP?
Damian Reply
China
Cied
types of nano material
abeetha Reply
I start with an easy one. carbon nanotubes woven into a long filament like a string
Porter
many many of nanotubes
Porter
what is the k.e before it land
Yasmin
what is the function of carbon nanotubes?
Cesar
I'm interested in nanotube
Uday
what is nanomaterials​ and their applications of sensors.
Ramkumar Reply
what is nano technology
Sravani Reply
what is system testing?
AMJAD
preparation of nanomaterial
Victor Reply
Yes, Nanotechnology has a very fast field of applications and their is always something new to do with it...
Himanshu Reply
good afternoon madam
AMJAD
what is system testing
AMJAD
what is the application of nanotechnology?
Stotaw
In this morden time nanotechnology used in many field . 1-Electronics-manufacturad IC ,RAM,MRAM,solar panel etc 2-Helth and Medical-Nanomedicine,Drug Dilivery for cancer treatment etc 3- Atomobile -MEMS, Coating on car etc. and may other field for details you can check at Google
Azam
anybody can imagine what will be happen after 100 years from now in nano tech world
Prasenjit
after 100 year this will be not nanotechnology maybe this technology name will be change . maybe aftet 100 year . we work on electron lable practically about its properties and behaviour by the different instruments
Azam
name doesn't matter , whatever it will be change... I'm taking about effect on circumstances of the microscopic world
Prasenjit
how hard could it be to apply nanotechnology against viral infections such HIV or Ebola?
Damian
silver nanoparticles could handle the job?
Damian
not now but maybe in future only AgNP maybe any other nanomaterials
Azam
Hello
Uday
I'm interested in Nanotube
Uday
this technology will not going on for the long time , so I'm thinking about femtotechnology 10^-15
Prasenjit
how did you get the value of 2000N.What calculations are needed to arrive at it
Smarajit Reply
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Source:  OpenStax, Afrikaans huistaal graad 8. OpenStax CNX. Sep 11, 2009 Download for free at http://cnx.org/content/col11037/1.1
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