Miscellaneous

Emptying a storage room I find this old solar panel that we used years ago in the house in summer, when the electricity still did not arrive. We had this solar panel and 2 or 3 car batteries and some (if we could) for trucks. During the day we charged the car batteries, slowly but steadily. And we used the rest to have light at 12V even televisions at those 12V.

This is the Solar Arc ASI 16-2300. It has 35 cells and dimensions of 1,225 mx 0,305m, that is, 0,373625 m2

Testing in August between 14 and 15 in the afternoon I have obtained 20V and 2A maximum, so we are talking about a power of 40W P = V * I

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Snails and small conches are the worst pest I have right now in the garden. It is a serious problem because they kill the crops.

Also with the new padding system you have to be careful because it seems that they like it a lot and are going to reproduce a lot.

There are different methods, products and techniques to combat them. Today I come to tell one technique to prevent snails from climbing trees or tall-stemmed plants and ideas for improving and using it in more ways. It is a sweep to prevent them from going up to the plants.

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For a few years I have needed WIFI in an area with little coverage, where no cable, no fiber, or anything else reaches. The companies in the area with WiMax technology do not cover it either, so I have been with an Orange 4G router for several years. I didn’t get much bandwidth, only 3 -5 Mb but that worked for me. This year it did not exceed 200Kb so I had to look for options.

After trying several acquaintance cards. The company that works best for me is DIGI and to use its 4G coverage I have compared a 4g router, The Tp-link Archer MR600 and the results after a small configuration have been very good, achieving 15 to 20Mb of download.

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By Sea Pottery we understand all those pieces of ceramic or tiles that, like the Sea Glass, are eroded by the sea, by lakes or rivers, although the most common is to find them on the beaches. If you don’t know what the Sea Glass see our guide.

Besides Sea Pottery they also call it Stoneware Sea Pottery. I do not know a name in Castilian, perhaps the translation is marine ceramics or sea ceramics, marine ceramics of grés. Any combination seems valid, but I think that in these cases it is better to continue using the English name.

It is not a very discussed topic and we hardly find information on the Internet. Yes, there are pieces available for purchase on sites like Etsy or eBay, but not many people show their collections or any attempt to classify or normalize them.

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I am preparing some articles on building a Gauss rifle, and I have noticed the confusion that exists between two terms, coilgun (gauss rifle) y railgun (rail weapon).

Although the two refer to magnetic accelerators, the physical working principle is different.

When I imagined a gauss rifle or an accelerator, the same image of geomax magnets and steel balls always came to mind, and I thought that the YouTube videos were the same but big. Anyway here is a mini explanation.

The Gauss rifle or coilgunIs a linear magnetic accelerator consisting of a succession of electromagnets to accelerate the metal part. The main advantage of coilgun is that you can do as long as you want and in this way the energy required per turn is less, but the counterpart the longer the barrel is made it is much more difficult to synchronize.

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If you are looking for information for the 2020 or 2021 Google Science Fair I’m sorry to tell you that the project has been discontinued since 2019. At the moment it is not known if they will return to take a call for the most famous Science Fair, but it does not seem.

I’m used to internet content disappearing. I understand that they stop the fair, but not that they eliminate all the content with the projects and winners of the two years that could inspire so many kids. Right now all the content that existed redirects to Google Education, the videos have stopped working and the Twitter account is with protected tweets.

If you want to see what the Google Science Fair was and the incredible projects that were going on, in this article they are all compiled.

We hope they will celebrate it again soon.

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