# Glass Radiometer with Base

Full listing title: Glass Crooke Radiometer Transparent Spherical Glass Radiometer with Base Compact Vacuum Chamber Thermal Vane for Kids, Physics Enthusiasts

- SKU: DCD-10001600604
- Price: 26.49 USD (excludes sales tax; tax calculated at checkout). Price valid until 2026-10-31.
- Availability: In stock (20 available; up to 10 per order)
- Shipping: free standard shipping, United States only; delivered in 11-21 days from order (leaves the warehouse within 4 business days)
- Estimated delivery if ordered today (2026-10-01): 2026-10-12 to 2026-10-22
- Returns: 30 days from delivery for unused items in original packaging; customer pays return shipping unless the item is damaged, defective or not as described; refund to the original payment method within 5 business days of receiving the return (https://suntekstore.com/returns/)
- Category: Hobbies & Collectibles (Arts & Entertainment > Hobbies & Creative Arts)
- Condition: new; brand: SuntekStore
- Package size: 24 x 21.03 x 10.37 cm (9.4 x 8.3 x 4.1 in)
- Weight: 0.44 kg (0.97 lb)
- Material: High Borosilicate Glass
- In the box: Radiometer ×1
- Product size: 8 x 8 x 21.5 cm (3.1 x 3.1 x 8.5 in)
- Structure: Transparent spherical chamber, transparent stem, circular transparent base
- Rotor: Four-bladed, black and light-colored faces
- Chamber: Close to vacuum
- Function: Rotates under light, can rotate in opposite direction with cool air

## Description

Product Identity: This glass Crooke radiometer features a transparent spherical chamber, slender stemming, and circular base, crafted as a traditional thermal vane for observing light-driven motion.
Core Function: Powered by light energy, the four-bladed rotor inside the near-vacuum chamber spins when uncover to light, and reverses direction, serving as an interactive solar radiometer for hands-on learning.
Design Features: Built with fully transparent glass construction and contrasting black and light-colored faces, this desktop display ornament offers clear visibility of the rotor’s movement from each angle.
Key Features: Compact in size with an overall height of 138 mm, a 75 75 mm bulb diameter diameter, and a 65 mm base diameter, this delicate instrument fits neatly on desks, shelves, or study tables without taking up much space.
Intended Use: Designed as a science demonstration instrument for children and adults alike, it brings physics concepts while adding a decorative, conversation-starting touch to any workspace or learning area.

This glass Crooke radiometer is a beautifully crafted classic thermal vane that combines scientific with elegant, minimalist design. Featuring a transparent spherical chamber mounted on a slender glass stemming and a stable circular base, the entire piece is constructed from clear glass to ensure unobstruct visibility of the internal mechanism. Inside the near-vacuum chamber sits a four-bladed rotor with contrasting black and light-colored faces, a distinctive design that makes the movement easy to follow. At it rates, this solar radiometer demonstrates the relationship between light and heat energy in a visually captivating way. When uncover to light, the rotor begins to rotate the darker areas absorb more heat energy, creating a tiny temperature difference that drives rotation.

Option: Pure Clear

## How to buy

Open https://suntekstore.com/buy/DCD-10001600604?qty=1 (change qty to 1-10). It redirects to Stripe Checkout; the shopper enters a US shipping address and pays there. No account or cart needed.

## Links

- Product page: https://suntekstore.com/p/DCD-10001600604/
- JSON: https://suntekstore.com/products/DCD-10001600604.json
- Image: https://suntekstore-img.sfo3.digitaloceanspaces.com/p/f7/f726c01dd02706867b71ad15ee7e0fd2fb9e299d.jpg
- Store policies: https://suntekstore.com/llms.txt