These curious and mesmerising instruments measure the power of electromagnetic radiation. Made from a glass bulb with much of the air removed to form a partial vacuum, inside is a set of fine metal vanes, each with one dark and one light side, mounted on a spindle. The vanes rotate, as if by magic, when exposed to sunlight, artificial light, or infrared radiation (even the heat of a hand nearby can be enough) – the more intense the light, the faster the rotation.
We offer three UK delivery options:
Standard UK Delivery: £4.99. On this service, goods will usually arrive within 14 days of your order reaching us, and often in less than 10. (Please remember that if you posted your order it may have taken up to five days to get here).
3-Day Delivery: £6.99. This is a three-working-day (not Saturday, Sunday, or Bank Holidays) service for UK mainland and Ulster addresses, provided that you order before 1pm. Orders received after 1pm will be processed on the next working day, so take one day longer to arrive. If you require an item to be personalised, your order will be delayed by one working day.
Express Delivery: £9.99. This is a next-working-day (not Saturday, Sunday, or Bank Holidays) service for UK mainland and Ulster addresses, provided that you order before 1pm. Orders received after 1pm will be processed on the next working day, so take one day longer to arrive. Service to Scotland, Northern Ireland, Isle of Wight and other UK Islands takes two days. If you require an item to be personalised, your order will take an additional working day. Your package will arrive between 9am and 6pm (may be up to 8pm), and must be signed for on receipt, so please give an address where there will be somebody available to take delivery (perhaps a neighbour/friend, or your workplace if your employer permits this).
Delivery Information (Overseas)
We are currently unable to deliver to EU addresses due to the high and unpredictable costs, customs charges, and courier handling fees. Our other overseas delivery charges (standard service only) are:
Channel Islands (7-10 Days), £20
Rest of World. From about £50, depending on what you order. Please phone on +44 1932 235550 or e-mail us on firstname.lastname@example.org for a quote. Outside Europe, most orders arrive within 21 days.
VAT (sales tax) will be deducted from the listed price of your goods where applicable for customers outside the UK, including those from the Channel Islands.
I have been looking for this item for awhile read reviews on other sites but was not impressed. So when I saw this and the excellent reviews I just ordered snd Im delighted. Excellent customer service. Beautifully packed and well protected for its journey to me. It is insitu and I Love it. So VERY happy with my purchase. Thank you
Unusual unit. Lots of comments. Spinning well.
I have just tried it again in fairly strong sunlight and it does not rotate at all. Our daughter bought me a similar one about 30 years ago and that whizzed around in any sort of light until it gave up the ghost a couple of years ago. This was meant to be a replacement. I think the item must be defective.
I sent this to my son as a surprise (we had been talking about Radiometers, although l didn't know that was it's name) as he was fascinated by one we had at home years ago. He's had a rough time, was furloughed and recently made redundant. It arrived extremely promptly and well packaged. He loves it!
This was my first order from Nauticalia.I was most impressed with the speed the Radiometer arrived. Almost by return of post!Would definiteley recommend Nauticalia.