Time Indicator Working STEM Lab Manufacturer,Supplier and Exporter in India
Product Code : SCL-MH-12494
Introduce students to the intricate cosmic clockwork that defines global human scheduling with the high-precision Time Indicator Working Model STEM Lab, designed and engineered exclusively by Educational Instrument India. Before the advent of atomic vibrations and quartz crystals, humanity mapped hours using the direct orientation of the Earth against the Sun. This comprehensive laboratory tellurion and solar time calculative apparatus transforms abstract coordinates of longitudes, local mean time, and historical time tracking into an interactive, highly intuitive spatial experiment.
The core pedagogical objective of the Time Indicator Working Model STEM Lab is to demonstrate how Earth’s axial rotation creates immediate, mathematically predictable variations in time across different longitudes. The apparatus features a highly detailed, calibrated hemispherical globe grid alongside an adjustable brass gnomon (shadow-casting indicator pointer) and an integrated solar point light. By rotating the planetary arm and tracking the movement of shadows over a laser-etched temporal scale, students learn exactly why local noon changes across coordinates, discover how the Prime Meridian works, and see how the International Date Line operates without confusion.
As a leading name in worldwide laboratory instrument manufacturing, Educational Instrument India builds this apparatus using corrosion-resistant brushed brass accents, structural aluminum profiles, and tough, impact-resistant ABS substrates. The base of the instrument contains a high-contrast multi-ring time conversion scale, which allows young scientists to align their local latitude coordinates, track seasonal changes using the Equation of Time index, and observe how solar time translates directly into standard civil time zones. This instrument is an indispensable asset for middle school geography, high school physics, and undergraduate astronomy labs.
Core Scientific and Mathematical Concepts Taught:
Apparent Solar Time vs. Standard Time: Measuring the actual physical position of the sun via shadow paths and calculating standard time variations caused by Earth's elliptical orbit.
Longitudinal Time Transformations: Calculating the strict mathematical relationship where every of longitudinal shift represents a 4-minute correction in local mean time.
Sundial Gnomon Mechanics: Aligning index pointers with the celestial axis to understand ancient and historical timekeeping engineering.
Product Specifications
Crafted to deliver high accuracy and withstand continuous, multi-group lab rotations, this scientific apparatus exhibits the following precise build characteristics:
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Parameter |
Specification Details |
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Brand Name |
Educational Instrument India |
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Product Model Code |
EII-STEM-TIM-2026 |
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Core Materials |
Anodized Structural Aluminum, Solid Brushed Brass Gnomon Pointer, Heavy-duty ABS Base Sheet |
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Solar Light Simulator |
High-intensity 3W focusable LED module mounted on a pivoting arm (Replicates solar rays cleanly) |
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Calibrated Temporal Scale |
Laser-etched dual 12-hour (AM/PM) and 24-hour circular coordinate rings split into 10-minute intervals |
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Latitude Adjuster Range |
micro-adjustable vertical quadrant arc with secure thumb-screw locking paths |
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Base Plate Calculations Index |
Integrated circular dial displaying the Equation of Time (solar deviation minutes) and 24 international major city meridians |
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Power Infrastructure |
Safe Low Voltage: 5V DC via type-C USB cable (Included) or 3 x AAA internal dry cell battery hub |
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Dimensions (LxWxH) |
26.5 cm x 22.0 cm x 31.5 cm |
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Quality Certifications |
ISO 9001:2015 Quality Management Systems, CE Safety Certified, RoHS Environmentally Compliant |
How To Use It
Follow these step-by-step procedures compiled by our engineering panel to guarantee exact mathematical tracking and protect the system's alignment components:
Bench Orientation and Leveling: Place the apparatus on a level, solid laboratory bench. Check the small surface bubble indicator and turn the rubber padding feet until the chassis rests perfectly horizontal.
Latitude Calibration: Identify your local latitude coordinate. Loosen the vertical thumb-screw on the quadrant arc, tip the rotational head until the indicator matches your exact local angle, and tighten the screw back down. This aligns the internal spindle parallel to the Earth's true rotational axis.
Power & Light Alignment: Connect the USB-C power line into the chassis input port or verify that fresh AAA cells are locked inside. Turn the solar simulator LED switch to "ON" and direct the beam across the central gnomon.
Tracking Local Solar Noon: Turn the main horizontal timeline plate until the shadow thrown by the brass gnomon aligns squarely with the 12:00 Noon mark on the inner dial. Dim your room lighting slightly if needed to emphasize the crisp shadow boundaries.
Simulating Longitudinal Time Splits: Slowly orbit the simulated solar light arm eastward by . Note how the shadow line on the scale travels by exactly one hour. Have students manually track this motion to verify that traveling changes local time by 4 minutes.
Calculating Time Zone Conversions: Align the target pointer with a global city marked on the base index dial (e.g., London / GMT vs New Delhi / IST). Read the resulting hour variances directly off the multi-ring concentric tracks to calculate time zone math without manual chart errors.
Storage & Upkeep: Flick the power rocker to "OFF." Clean the polished brass scales with a dry anti-static microfiber cloth to clear away dust or finger moisture traces. Keep the instrument packed inside its protective container.
Frequently Asked Questions (FAQs)
Q1: Why does solar time measured on this kit sometimes deviate slightly from standard clock time?
A1: This variance mimics a real astronomical fact. Standard clocks assume that every day is exactly 24 hours long, but because of Earth's elliptical orbit, real solar days vary slightly. The Educational Instrument India kit features an Equation of Time conversion graph on the base to help students reconcile this difference.
Q2: Can this model be used outdoors under direct natural sunlight?
A2: Yes! While the kit includes a high-powered internal LED source for standard indoor lab rooms, you can easily swing the light arm aside and use natural sunlight outdoors. Simply align the chassis toward true geographic North to turn the instrument into a highly precise astronomical sundial.
Q3: What should we do if the shadow thrown by the gnomon pointer looks fuzzy or out of focus?
A3: Fuzzy shadows typically mean the focus barrel on the solar simulator lamp needs a minor adjustment. Twist the outer sleeve of the LED lens casing to tighten or widen the light beam until the shadow edge cast across the metric ring looks crisp and easy to read.
Q4: Are the structural calibration markings printed on or engraved into the dials?
A4: To ensure long-term durability in busy school labs, Educational Instrument India avoids surface ink printing. All temporal rings, latitude indexes, and city data lines are laser-engraved into the metal and polymer plates, ensuring they will never wear off from repetitive student use.
Q5: Can this kit support digital data tracking extensions during physics lab modules?
A5: Yes. The open configuration of the temporal rings is designed to accommodate external light intensity sensors or mobile tracking camera stands, letting students record shadow speeds and analyze data using digital tracking software.
