Posted on

New and Improved Slinky Seismometer

After many months of work, research and discussions, the latest iteration of our Slinky Seismometer Kit is now available. We’ve taken feedback from customers, and worked closely with Paul Denton, who has over 30 years’ experience in geophysics and education, to drastically improve the Slinky Seismometer Kit.

For those of you unfamiliar with the device, here is an excerpt from the description:

“Originally designed in association with the British Geological Survey (and Paul himself), our new and improved Slinky Seismometer Kit provides an elegant and low-cost solution to earthquake detection. The seismometer uses electromagnetic induction to detect ground motion and incorporates eddy current damping for improved sensing. Supplied in kit form, the seismometer is quick and easy to assemble, and you’ll be up and running in no time!”

We’ve taken the time to improve our original slinky kit, and as such there are a host of new and improved features. We’ve changed the outer casing to an engraved, rigid acrylic tube, which provides more stability and protection to the device.

We have an adjustable threaded top, for height adjustment of the magnet inside the coil.

There are now three adjustable threaded knurled feet, which allow you to easily centre the magnet inside of the coil.

Furthermore, we now have a dual coil assembly, with a 14mm magnet balanced between them. The coils have opposing directions, but are wired so that the detected voltage is cumulative. This allows for a greater sensitivity in readings but any interference is cancelled out.

As with our Build your own Seismometer Kit, we now have a small PCB with a 3.5mm jack socket, which allows for easy connections to your chosen seismometer interface.

The kit is available to purchase now, and for a limited time you can get a SeismicPi HAT, worth £48, for free! Just add the ‘Slinky Seismometer Kit‘, or the ‘Build your own Seismometer Kit‘ to your basket and enter the coupon code ‘EDUSEIS1’. Your free SeismicPi HAT will be added.

Posted on

Redfern and the Global STEM Award at New Scientist Live

Next month, Redfern along with the Global STEM Award are heading to New Scientist Live, at the Excel Arena in London.

Global STEM Award, in partnership with Redfern Electronics are bringing a range of exciting projects to the show. Redfern will be showcasing space-themed robotics activities and investigations with the opportunity to test your ‘Crumble’ micro-controller coding skills. The Global STEM Award recognises the completion of STEM projects by 9 – 13 yr olds.  It is the only scheme through which candidates develop an awareness for both their world AND the careers of the people who make these amazing things happen in real life. The Redfern activities are accredited for use towards your Global STEM Award.

Show Launches – Two new Global STEM books and boxes will be unveiled at the show (EXPLORER and CONSERVATION routes). These are ideal for STEM clubs or home educator groups. The boxes contain all you need to run the activities and certificates for Bronze, Silver and Gold awards.

Crumble kits – Redfern Electronics will be offering Crumble kits, at special show prices, containing all the parts necessary for a range of projects. Accredited by the Global STEM Award, each box also contains a voucher to get you started on your awards journey.

Special show offer – Bring your completed Global STEM Award projects with you (photos and/or project sheets). We would love to see them and you can purchase your Bronze/Silver or Gold Awards at the stand for a 25% show discount. All the award information is on the website and you’re welcome to contact us with any questions.

And a bit about us…

Global STEM Award was founded in 2017 by UKSTEM and launched officially in 2018. With key STEM partners of Redfern and the University of Wolverhampton, the award has found plenty of recognition. It was quickly adopted as an entry route into the Big Bang Competition and has been accredited by Children’s University. The Global STEM Award is currently available at 3 levels: Bronze, Silver and Gold, with a Platinum level, for older learners, planned for launch in 2020.

Since Redfern Electronics launched the Crumble controller in 2014, the Crumble has grown from strength to strength, becoming a staple of physical computing in the UK. Redfern is now applying its philosophy of accessible and affordable products into new areas of STEM. Partnering with the Global STEM award fits perfectly with their exciting new direction.