Technical Drawings
Technical Drawings - Related Videos
06:22
Motor Learning in Mirror Drawing
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2023
Source: Laboratory of Jonathan Flombaum—Johns Hopkins University Colloquially, the terms learning and memory encompass a broad range of behaviors and mental systems, everything from learning to tie a shoe to mastering calculus (and a lot in between). Experimental psychologists have divided up learning mechanisms into groups that seem to have different properties, and that seem to rely on different brain systems. A major division is between declarative and non-declarative memory, roughly, the...
11:57
Fabricating Metamaterials Using the Fiber Drawing Method
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Cited by 23 •
2012
Metamaterials at terahertz frequencies offer unique opportunities, but are challenging to fabricate in bulk. We adapt the fabrication procedure for microstructured polymer optical fibers to inexpensively fabricate metamaterials potentially on an industrial scale. We produce polymethylmethacrylate fibers containing ~10 μm diameter indium wires separated by ~100 μm, which exhibit a terahertz plasmonic response.
01:16
Drawing Free-body Diagrams: Rules
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2023
The first step in describing and analyzing most phenomena in physics involves the careful drawing of a free-body diagram. Free-body diagrams are useful in analyzing forces acting on an object or system, and are employed extensively in the study and application of Newton's laws of motion. The steps to draw a free-body diagram are listed below: • Draw the object under consideration. If treating the object as a particle, represent the object as a point. Place this point at the origin of a...
07:53
Group Synchronization During Collaborative Drawing Using Functional Near-Infrared Spectroscopy
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Cited by 5 •
2022
The present protocol combines functional near-infrared spectroscopy (fNIRS) and video-based observationto measure interpersonal synchronization in quartets during a collaborative drawing task.
05:27
Drawing Blood from Rats through the Saphenous Vein and by Cardiac Puncture
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Cited by 91 •
2007
Blood draws are necessary in a large number of studies, for example to study the pharmacokinetics profile of a compound. Here, we demonstrate how to draw blood from rats using two techniques: blood draw from the saphenous vein or by cardiac puncture.
FAQs
Projection methods determine how a three-dimensional form is translated onto a two-dimensional surface, so the selected method affects how shape, position, and spatial relationships appear. In mathematical terms, this requires reasoning about corresponding views and locations rather than relying on visual appearance alone. Understanding that relationship helps learners interpret a drawing consistently and connect planar representations with geometric objects.
Scale and dimensions work together to preserve proportional relationships between a represented object and its intended size. A reader can use the stated scale to relate measured lengths on the drawing to corresponding lengths in the object, while dimensions communicate specific sizes and positions. This combination makes the drawing useful for checking geometric accuracy and comparing parts within a design.
Geometric primitives provide the basic forms from which more complex shapes can be represented, while symbols communicate technical information efficiently. Coordinates help specify location and support accurate relationships among points, lines, and other elements. Together, these features allow a drawing to express geometry systematically, reducing ambiguity and making spatial structure easier to construct, inspect, and interpret.
Construction begins by identifying the object or relationship to be represented, selecting suitable geometric elements, and organizing their positions through measurement, scale, or coordinates. Dimensions and symbols are then added to communicate size and other relevant relationships. Finally, the completed representation can be checked for proportionality, spatial consistency, and alignment with the intended geometric form.
They connect abstract ideas such as geometry, measurement, proportionality, and coordinates with visual representations that can be examined directly. Students can analyze shapes, compare spatial relationships, and reason about how a three-dimensional form appears in two dimensions. This supports practical problem-solving and strengthens visual analysis by requiring mathematical information to remain accurate across the representation.
Technical drawings support engineering design, architecture, manufacturing, geometric construction, and technical communication. In each setting, mathematical accuracy helps convey shape, size, position, and relationships so that others can interpret or use the representation consistently. Their broader value lies in translating geometric reasoning into a shared visual form for planning, design, analysis, and practical implementation.