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Sickle

Sickle is a science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Sickle rather than just read about it. In short: A sickle, bagging hook, reaping-hook or grasshook is a single-handed agricultural tool designed with variously curved blades and typically used for harvesting or reaping grain crops, or cutting succulent forage chiefly for feeding livestock. Falx was a synonym, but was later used to mean any of a number of tools that had a curved blade that was sharp on the inside edge.

Sickle — main illustration
Sickle — illustration

Key takeaways

  • Sickle belongs to science; place it in that map before memorising details.
  • Learn the definition first, then one example that makes the definition concrete.
  • Connect Sickle to a quantity you can measure, compute or draw — that is where exam questions come from.
  • Reproduce the core statement of Sickle from memory before moving on to harder problems.

Reference excerpt

A sickle, bagging hook, reaping-hook or grasshook is a single-handed agricultural tool designed with variously curved blades and typically used for harvesting or reaping grain crops, or cutting succulent forage chiefly for feeding livestock. Falx was a synonym, but was later used to mean any of a number of tools that had a curved blade that was sharp on the inside edge. Since the beginning of the Iron Age hundreds of region-specific variants of the sickle have evolved, initially of iron and later steel. This great diversity of sickle types across many cultures can be divided into smooth or serrated blades, both of which can be used for cutting either green grass or mature cereals using slightly different techniques. The serrated blade that originated in prehistoric sickles still dominates in the reaping of grain and is even found in modern grain-harvesting machines and in some kitchen knives.

History

Pre-Neolithic

Harvesting sickles, first developed around 15,000 years ago, had wooden handles and flint blades. Their basic design remained largely unchanged for thousands of years across different cultures. The development of the sickle in Mesopotamia can be traced back to times that pre-date the Neolithic Era. Large quantities of sickle blades have been excavated in sites surrounding Israel that have been dated to the Epipaleolithic era (18000–8000 BC). Formal digs in Wadi Ziqlab, Jordan have unearthed various forms of early sickle blades. The artifacts recovered ranged from 10–20 cm (3.9–7.9 in) in length and possessed a jagged edge. This intricate ‘tooth-like’ design showed a greater degree of design and manufacturing credence than most of the other artifacts that were discovered. Sickle blades found during this time were made of flint, straight and used in more of a sawing motion than with the more modern curved design. Flints from these sickles have been discovered near Mt. Carmel, which suggest the harvesting of grains from the area about 10,000 years ago.

Neolithic

The sickle had a profound impact on the Agricultural Revolution by assisting in the transition to farming and crop based lifestyle. It is now accepted that the use of sickles led directly to the domestication of Near Eastern Wild grasses. Research on domestication rates of wild cereals under primitive cultivation found that the use of the sickle in harvesting was critical to the people of early Mesopotamia. The relatively narrow growing season in the area and the critical role of grain in the late Neolithic Era promoted a larger investment in the design and manufacture of sickle over other tools. Standardization to an extent was done on the measurements of the sickle so that replacement or repair could be more immediate. It was important that the grain be harvested at the appropriate time at one elevation so that the next elevation could be reaped at the proper time. The sickle provided a more efficient option in collecting the grain and significantly sped up the developments of early agriculture.

Bronze Age The sickle remained common in the Bronze Age, both in the Ancient Near East and in Europe. Numerous sickles have been found deposited in hoards in the context of the European Urnfield culture (e.g. Frankleben hoard), suggesting a symbolic or religious significance attached to the artifact. In archaeological terminology, Bronze Age sickles are classified by the method of attaching the handle. E.g. the knob-sickle (German Knopfsichel) is so called because of a protruding knob at the base of the blade which apparently served to stabilize the attachment of the blade to the handle.

Iron Age

The sickle played a prominent role in the Druids' Ritual of oak and mistletoe as described from a single passage in Pliny the Elder's Natural History:

A priest arrayed in white vestments climbs the tree and, with a golden sickle, cuts down the mistletoe, which is caught in a white cloak. Then finally they kill the victims, praying to a god to render his gift propitious to those on whom he has bestowed it. They believe that mistletoe given in drink will impart fertility to any animal that is barren and that it is an antidote to all poisons. Due to this passage, despite the fact that Pliny does not indicate the source on which he based this account, some branches of modern Druidry (Neodruids) have adopted the sickle as a ritual tool.

Americas

Indigenous sickles have been discovered in southwest North America with unique design. There is evidence that Kodiak islanders had for cutting grass "sickles made of a sharpened animal shoulder blade". The artifacts found in present-day Arizona and New Mexico resemble curved tools that were made from the horns of mountain sheep. A similar site discovered sickles made from other material such as the Caddo Sickle, which was made from a deer mandible. Scripture from early natives document the use of these sickles in the cutting of grass. The instruments ranged 13–16 in (330–410 mm) from tip to haft. Several other digs in eastern Arizona uncovered wooden sickles that were shaped in a similar fashion. The handles of the tools help describe how the tool was held in such a way so that the inner portion that contained the cutting surface could also serve as a gathering surface for the grain. Sickles were sharpened by scraping a shape beveled edge with a coarse tool. This action has left marks on artifacts that have been found. The sharpening process was necessary to keep the cutting edge from being dulled after extended use. The edge is seen to be quite highly polished, which in part proves that the instrument was used to cut grass. After collection, the grass was used as material to create matting and bedding. The sickle in general provided the convenience of cutting the grass as well as gathering in one step. In modern times, the sickle is being used in South America as tool to harvest rice. Rice clusters are harvested using the instrument and left to dry in the sun.

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… excerpt ends here. Continue reading the full article.

Illustrations

Sickle illustration
Sickle: One of 12 roundels depicting the "Labours of the Months" (1450–1475)
One of 12 roundels depicting the "Labours of the Months" (1450–1475)
Sickle: A very early sickle, c. 7000 BC, flint and resin, Tahunian culture, Nahal Hemar cave, now in the Israel Museum.
A very early sickle, c. 7000 BC, flint and resin, Tahunian culture, Nahal Hemar cave, now in the Israel Museum.
Sickle: Neolithic sickle
Neolithic sickle
Sickle: Ancient Greek iron sickle, Kerameikos Archaeological Museum, Athens.
Ancient Greek iron sickle, Kerameikos Archaeological Museum, Athens.

Worked examples

Example 1 — a first encounter with Sickle

Start with the simplest possible case. Write down what Sickle claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Sickle before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Sickle ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Sickle

In research
Sickle appears in science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry
Engineering practice reuses Sickle in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom
Sickle is common in secondary-school and first-year university syllabi. It links to neighbouring topics Cutting tools, Farming tools, Heraldic charges, so understanding it makes those chapters shorter.
In everyday life
Look for Sickle outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.
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How to study Sickle in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what Sickle means in your own words.
  3. Compare your version with the excerpt and mark what you missed.
  4. Work through the three examples above with pen and paper.
  5. Explain Sickle out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Sickle in simple terms?

A sickle, bagging hook, reaping-hook or grasshook is a single-handed agricultural tool designed with variously curved blades and typically used for harvesting or reaping grain crops, or cutting succulent forage chiefly for feeding livestock. Falx was a synonym, but was later used to mean any of a n…

Why does Sickle matter?

Because it connects several science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Sickle?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Sickle.

Tags

  • Cutting tools
  • Farming tools
  • Heraldic charges

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