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use differences in atmospheric pressure to grasp items from 100 micrometres in size up to parts weighing several pounds. Special vacuum tweezer tips are manufactured to handle a wide variety of items such as surface-mount electronics, optics, biological material, stamps and coins. They may be used
593:
Carbon nano-tweezers have been fabricated by deposition of MWNT bundles on isolated electrodes deposited on tempered glass micropipettes. Those nanotube bundles can be mechanically manipulated by electricity and can be used to manipulate and transfer micro- and nano-structures. The nanotube bundles
377:
There are two common forms of construction for tweezers: two fused, angled pieces of metal, or one piece of metal bent in half. The bent tweezer is cheaper to manufacture, but gives weaker grip. The fused tweezer is more expensive, but allows for a stronger grip. The width between the tips of the
515:
use magnetic forces to manipulate single molecules (such as DNA) via paramagnetic interactions. In practice it is an array of magnetic traps designed for manipulating individual biomolecules and measuring the ultra-small forces that affect their
370:. Some tweezers have a long needle-like tip which may be useful for reaching into small crevices. Triangular tip tweezers have larger, wider tips useful for gripping larger objects. Tweezers with curved tips also exist, sometimes called bent
335:, "to hold or keep safe." Over time, the object now known as "tweezers" took on this name because the tool was commonly found in these tiny carrying cases. Eventually, the word "tweeze" was accepted as a verb in the English language.
392:(aka reverse-action tweezers or self-closing tweezers) work in the opposite way to normal tweezers. Cross-locking tweezers open when squeezed and close when released, gripping the item without any exertion of the user's fingers.
311:
with a double-bow shaped tool. Asiatic tweezers, consisting of two strips of metal brazed together, were commonly used in
Mesopotamia and India from about 3000 BC, perhaps for purposes such as catching lice. During the
538:
the redistribution of charges in targeted objects, therefore generating
Coulomb attraction force between tweezers and manipulated objects. Electrostatic tweezers work in a trapping mode or guiding mode.
598:
Other uses of the same principle are named tweezers; although such terms are not necessarily widely used their meaning is clear to people in the relevant field. E.g., Raman tweezers, which combine
259:
which, while large enough to pick up by hand, could be damaged by handling; the jaws of stamp tongs are smooth. Another example of a specialized use is picking out the flakes of gold in
509:, these instruments have been used to apply forces in the pico Newton range and to measure displacements in the nm range of objects ranging in size from 10 nm to over 100 mm.
235:
from the face or eyebrows, often using the term eyebrow tweezers. Other common uses for tweezers are as a tool to manipulate small objects, including for example small, particularly
594:
used for tweezers are about 50 nm in diameter and 2 μm in lengths. Under electric bias, two close sets of bundles are attracted and can be used as nanoscale tweezers.
323:
The word tweezer comes from etwee which describes a small case that people would use to carry small objects (such as toothpicks) with them. Etwee takes its origin from French
646:
494:
The original tweezers for mechanical gripping have given rise to a number of tools with similar action or purpose but not dependent upon mechanical pressure, including
362:
Tweezers come in a variety of tip shapes and sizes. Blunt tip tweezers have a rounded end which can be used when a pointed object may get entangled, when manipulating
551:
use sound to manipulate particles or cells in the fluid. An elegant Gor'kov potential theory is used most for small sizes compared with the incident wavelength.
224:
at the webspace between the thumb and index finger. Spring tension holds the grasping ends apart until finger pressure is applied. This provides an extended
275:
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to remove bones from fillets of fish in a process known as pin boning, and are as tongs used to serve pieces of cake to restaurant patrons.
954:
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177:. In a scientific or medical context, they are normally referred to as just "forceps", a name that is used together with other grasping
624:, which use highly focused small lasers and a lens to stabilize atom or cell-sized small objects; the chief inventor won half the 2018
288:
590:
Tweezers integrated with an electronic measuring device for evaluation of electrical parameters of small-size electronic components.
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132:
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point of each lever), with the pincers at the others. When used, they are commonly held with one hand in a pen grip between the
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and allows the user to easily grasp, manipulate and quickly release small or delicate objects with readily variable pressure.
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to handle parts that are so small that conventional mechanical tweezers may cause parts to be damaged or dropped and lost.
221:
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374:. Microtweezers have an extremely small, pointed tip used for manipulating tiny electronic components and the like.
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Hot, or soldering, tweezers combine the squeezing action of mechanical tweezers with heating, to grip small
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366:, for example. Flat tip tweezers, pictured at right, have an angled tip which may be used for removing
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There is evidence of Roman shipbuilders pulling nails out of construction with plier-type pincers.
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nail art (application of gems, stickers etc to fingernails or toenails as part of a manicure)
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505:. The momentum transfer from a focused laser beam is able to trap small particles. In the
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739:"Observation of a single-beam gradient force optical trap for dielectric particles"
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Proceedings of the
National Academy of Sciences of the United States of America
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by damaging hair roots to prevent new hair from growing from the same root.
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tweezers when no force is applied also affects how powerful the grip is.
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190:
673:. Archives of civilization. Vol. 3. Biblo & Tannen Publishers.
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used for grasping objects too small to be easily handled with the human
1197:
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Jin Y, Xu W, Zhang H, Li R, Sun J, Yang S, et al. (January 2022).
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Two types of modern-day conventional metal tweezers with pointed tips
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436:), to protect the coins these are wrapped at the tips with plastic
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use light to manipulate microscopic objects as small as a single
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A pair of bronze tweezers attributed to the Minoan civilization,
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308:
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647:"Christmas Bakery – Santa Claus Cake Made With Gerald Tweezers"
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that have two arms capable of binding guests molecules through
29:
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deliver an electrical signal through the tip, intended for
583:
fixed to a tweezer mechanism to measure voltages or other
572:
electronic devices while simultaneously heating them, for
404:
Ceramic-tipped tweezers. Heat resistant and non-magnetic
737:
Ashkin A, Dziedzic JM, Bjorkholm JE, Chu S (May 1986).
458:
semiconductor technology in the form of wafer tweezers
173:used to grab or hold hot objects since the dawn of
60:. Unsourced material may be challenged and removed.
786:"Electrostatic tweezer for droplet manipulation"
231:People commonly use tweezers for such tasks as
948:
8:
720:"Eyelash made in different sizes and shapes"
955:
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698:. Greenwood Publishing Group. p. 81.
358:A pair of modern-day round-tipped tweezers
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809:
263:. Tweezers are also used in kitchens for
220:), with the top end resting on the first
120:Learn how and when to remove this message
579:Tweezer probes are a pair of electrical
299:Tweezers are known to have been used in
637:
587:parameters between closely spaced pins.
461:medicine (Forceps and Tissue Forceps)
200:Tweezers make use of two third-class
7:
58:adding citations to reliable sources
875:"Raman tweezers probe living cells"
617:Instruments used in general surgery
885:from the original on March 3, 2008
25:
303:. There are drawings of Egyptian
279:Gold tweezers recovered from the
243:, and small mechanical parts for
920:
906:
432:dealing with smaller coins (see
316:, tweezers were manufactured in
204:connected at one fixed end (the
34:
844:"Multimeter/LCR Meter tweezers"
659:Sourceforge project. (CC-BY-SA)
450:hair removal (eyebrow tweezers)
412:Tweezers in use in a laboratory
45:needs additional citations for
27:Tool for grabbing small objects
645:Tocantweezer (December 2015).
350:Flat tip conventional tweezers
1:
911:The dictionary definition of
873:Hewett J (27 February 2002).
534:use electrostatic voltage to
472:textile industry as iron nubs
396:Usage of traditional tweezers
145:
165:. Tweezers are thumb-driven
1425:
247:and precision mechanisms.
222:dorsal interosseous muscle
1301:
993:
970:
696:Daily Life of the Nubians
425:dealing with stamps (see
169:most likely derived from
1342:Machine and metalworking
1273:Tongue-and-groove pliers
1352:Measuring and alignment
811:10.1073/pnas.2105459119
602:with optical tweezers.
490:Other kinds of tweezers
295:-era tweezers from Gaza
1404:Philatelic terminology
1389:Electronics work tools
724:qualitybeautystore.com
626:Nobel Prize in Physics
532:Electrostatic tweezers
413:
405:
390:Cross-locking tweezers
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385:Cross-locking tweezers
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327:"small case" from the
307:holding hot pots over
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283:, Iraq 2550-2450 B.C.
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149: 2900–1050 B.C.
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1409:Surgical instruments
1317:Cutting and abrasive
929:at Wikimedia Commons
763:10.1364/ol.11.000288
281:Royal Cemetery of Ur
216:(sometimes also the
179:surgical instruments
54:improve this article
802:2022PNAS..11905459J
755:1986OptL...11..288A
694:Bianchi RS (2004).
507:biological sciences
475:science, laboratory
998:Adjustable spanner
848:advancedevices.com
600:Raman spectroscopy
585:electronic circuit
555:Molecular tweezers
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1399:Medical equipment
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1288:Upholstery hammer
925:Media related to
705:978-0-313-32501-4
680:978-0-8196-0123-0
669:Childe V (1963).
651:Tocan-Tweezer.org
549:Acoustic tweezers
522:Electric tweezers
513:Magnetic tweezers
301:predynastic Egypt
265:food presentation
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16:(Redirected from
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1163:Pencil sharpener
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854:on July 19, 2013
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653:. Archived from
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622:Optical tweezers
499:Optical tweezers
291:Illustration of
249:Stamp collectors
241:electronic parts
175:recorded history
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749:(5): 288–290.
743:Optics Letters
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726:. 2 July 2019.
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671:The Bronze Age
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657:on 2015-12-22.
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251:use tweezers (
181:that resemble
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71: –
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65:Find sources:
59:
55:
49:
48:
43:This article
41:
37:
32:
31:
19:
1394:Hair removal
1282:
1258:Strap wrench
1233:Slide hammer
1228:Sledgehammer
1153:Paint roller
1038:Caulking gun
1008:Basin wrench
913:
887:. Retrieved
878:
868:
856:. Retrieved
852:the original
847:
838:
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655:the original
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563:non-covalent
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439:electronics
415:
389:
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364:cotton swabs
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261:gold panning
255:) to handle
230:
214:index finger
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83:
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64:
52:Please help
47:verification
44:
1367:Woodworking
1223:Screwdriver
1218:Scratch awl
1178:Pipe wrench
1028:Breaker bar
1013:Block plane
858:January 17,
581:test probes
484:watchmaking
479:aquascaping
434:Numismatics
421:typesetting
253:stamp tongs
1383:Categories
1248:Staple gun
1243:Spike maul
1158:Paintbrush
1148:Nut driver
1143:Multi-tool
1123:Lug wrench
1103:Hole punch
1073:Grease gun
964:Hand tools
889:2020-01-17
879:optics.org
632:References
526:depilation
447:cosmetics
329:Old French
314:Bronze Age
159:hand tools
157:are small
80:newspapers
69:"Tweezers"
1268:Tire iron
1133:Mitre box
1058:Fish tape
1033:Cat's paw
985:Workbench
574:soldering
516:behavior.
464:household
442:soldering
427:Philately
368:splinters
305:craftsmen
110:June 2008
1322:Forestry
1312:Cleaning
1283:Tweezers
1093:Headlamp
975:Sawhorse
927:Tweezers
914:tweezers
883:Archived
830:34992136
771:19730608
606:See also
565:bonding.
191:scissors
155:Tweezers
1347:Masonry
1337:Kitchen
1198:Plunger
1173:Pincers
1098:Hex key
1053:Crowbar
1048:Crimper
1023:Bradawl
980:Toolbox
821:8764671
798:Bibcode
751:Bibcode
372:forceps
333:estuier
271:History
206:fulcrum
187:pincers
167:forceps
163:fingers
94:scholar
18:Tweezer
1357:Mining
1327:Garden
1293:Wrench
1183:Pliers
1128:Mallet
1078:Hammer
1063:Gimlet
828:
818:
769:
702:
677:
536:induce
293:Hyksos
245:models
202:levers
195:clamps
193:-like
183:pliers
96:
89:
82:
75:
67:
1362:Power
1208:Punch
1043:Clamp
1018:Brace
796:(2).
342:Types
331:verb
318:Kerma
309:ovens
226:pinch
210:thumb
171:tongs
101:JSTOR
87:books
1332:Hand
1113:Jack
1088:Hawk
860:2020
826:PMID
767:PMID
700:ISBN
675:ISBN
503:atom
325:étui
212:and
189:and
73:news
816:PMC
806:doi
794:119
759:doi
56:by
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185:,
146:c.
956:e
949:t
942:v
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