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Radiómetro de Crookes de energía solar transparente
¿Cómo funciona?
El radiómetro de vidrio está hecho de una foco de vidrio al aspiradora. Cuando está expuesto a la luz solar, luz artificial o radiación infrarroja, sus hojas girarán. Cuanto más fuerte sea la luz, más rápido gira.
Exquisitamente diseñado
Hecho a mano con vidrio de alta calidad. Transparente, pequeño y exquisito. Es adecuado para ocasiones como oficinas, salas de estar, dormitorios, aulas, salas de estudio, fiestas, etc.
Regalo creativo
Darlo como un regalo a nuestra familia, amigos, colegas y líderes es perfecto. Mientras haya luz, puede girar continuamente, al igual que nuestras emociones. Mientras los tratemos sinceramente, la amistad puede ser eterna.
eieio
Comentado en los Estados Unidos el 23 de octubre de 2024
I purchase these raidometers as gifts. Before issuing them i test them for rate of spin. I have a very good working model and that is the base sample for rate of spin from a given level of light. I recently received a unit that did not meet standard and will return it. In all, I must have bought at least 15 of these units and only two were returned. In bright sunlight they should spin like crazy. If they are making 60 RPM in brught sunllight I consider that poor quality control. I will continue to purchase these units because they are well built but maybe it is the level of vacuum or the one point bearing and excessive resistnce that is at fault. Overall I do like this unit but will not hesitate to return a poorly performing unit.Update: The unit that works ell spins clockwise when viewed from the top. The recent purchase units that were returned are spinning counter clockwise. The construction is good but minor flaws are acceptable. It is the rate of spin that is the issue. If they spin slowly, or not at all, I return for replacement. Slow is 60 RPM or less in direct sunlight. The unit that works well must be spinning aboout 200 RPM, maybe 300. One looks sick and the other is performing at the Olympicc level.
カスタマー
Comentado en Japón el 7 de enero de 2024
太陽の灯りで単に羽が回るだけのものですが、羽がくるくる回っている様子を見ているだけでほっこりします。
Magron Starr
Comentado en Australia el 28 de enero de 2024
great science toy now i have one
King Francisco Z
Comentado en Canadá el 4 de marzo de 2022
A really amazing piece of decor, works like a charm, I am really interested in this, Great idea.
Sean Bond
Comentado en Canadá el 17 de septiembre de 2020
A amazing product! So very cool educational & entertaining! Nicely made!
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