Vendor Profile
CHATANI SANGYO
| Address | #5F OG Bldg. 4-1-43 miyahara Osaka-shi Yodogawa-ku Osaka, JAPAN ZIP:532-0003 |
|---|---|
| Representative Name | Tsuyoshi Funoki |
| Annual Revenue | JPY 20,100,000,000 |
| No. of Employees | 127 |
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SD item code:7054887
| Detail | Price & Quantity | ||
|---|---|---|---|
| S1 |
Single
 Original text before translation
シングル
(333-284)
JAN:4957907439807
|
(333-284)
JAN:4957907439807
Wholesale Price: Members Only
1 pc /set
In Stock
|
|
| S39 |
Single
Original text before translation
シングル
(333-284)
JAN:4957907439807
|
(333-284)
JAN:4957907439807
Wholesale Price: Members Only
6 pcs /set
In Stock
|
|
| Shipping Date |
|---|
|
About 1 week
|
| Dimensions |
|---|
|
Product size: H 180 x W 60 x D 60 mm
|
| Specifications |
|---|
|
Country of manufacture: China
Material / component: Borosilicate glass, iron, etc.
Package: Individual box
Product tag: None
|
Description
| Fun Science Radiometer Single Spinning on the windowsill. If you put it on the windowsill on a sunny day, the wings inside will spin around lightly. The principle is complicated, but it looks very light. Principle of spinning One side of the feather inside the glass is painted black. When exposed to light, the black surface of the feather absorbs the light and becomes hotter. Molecular activity of the gas near the surface becomes active, and the pressure due to molecular collisions on the surface of the vane differs from that on the other surface, causing the vane to rotate toward the unpainted surface. (The inside of the glass sphere is in a semi-vacuum state.) |
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| Shipping Method | Estimated Arrival |
|---|---|
| Sea Mail | From Feb.20th 2026 to Apr.24th 2026 |
| Air Mail | From Feb.4th 2026 to Feb.6th 2026 |
| EMS | From Feb.3rd 2026 to Feb.6th 2026 |
| Pantos Express | From Feb.5th 2026 to Feb.10th 2026 |
| DHL | From Feb.3rd 2026 to Feb.5th 2026 |
| UPS | From Feb.3rd 2026 to Feb.5th 2026 |
| FedEx | From Feb.3rd 2026 to Feb.5th 2026 |
|
Some trading conditions may be applicable only in Japan. |
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Fun ScienceOther items from this category:
Spinning on the windowsill. If you put it on the windowsill on a sunny day, the wings inside will spin around lightly.
The principle is complicated, but it looks very light.
Principle of spinning
One side of the feather inside the glass is painted black. When exposed to light, the black surface of the feather absorbs the light and becomes hotter. Molecular activity of the gas near the surface becomes active, and the pressure due to molecular collisions on the surface of the vane differs from that on the other surface, causing the vane to rotate toward the unpainted surface. (The inside of the glass sphere is in a semi-vacuum state.)