Image of Guglielmo Marconi overlaid on an open window, with some of his equipment in the foreground

150th anniversary of Guglielmo Marconi

25 April 2024 is the 150th anniversary of the birth of Guglielmo Marconi, inventor of radio and to whom the city of Chelmsford owes much of its industrial heritage.

Marconi set up the first factory for his Wireless Telegraph & Signal Company in Hall Street, Chelmsford in 1898. The work that took place there (and other sites subsequently) changed the world, completely revolutionising how we communicate with each other, entertain the population and sense the world around us. Find out more by reading this BBC article by CSES member Tim Wander.

The history of CSES, which had its centenary in 2020, is closely linked to the history of the Marconi Company. In its earliest days, the society was a meeting of engineers from the major companies based in Chelmsford, including Marconi's. You can read more about our history here.

We mark this occasion in collaboration with the Museo Marconi, Bologna, Italy, who are holding a special celebration event, further details of which can be found here.

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Some students exhibiting their work at last year's TEXPO

TEXPO 2024 now open for entries

CSES Schools' TEXPO: Fri 21 June 2024, ARU Chelmsford (9am for 10am start, latest 3pm finish)

For Y5-13 | Show your project to scientists and engineers | Cash prizes | Free lunch!

Are you in a STEM club at primary or secondary school? Have you made or investigated something fantastic in technology or science lessons? Have you been doing interesting technical projects at home?

Are you a teacher who'd like to showcase your pupils' / students' work? Or are you a parent, guardian or tutor whose child has been working on an exciting project?

If your answer to any of these questions is YES, then exhibit at the annual CSES TEXPO. There is prize money to be won and we even provide lunch!

We welcome projects from all areas of science and technology. This could be something you've made, software, experiments, reports, posters, videos etc. Entrants to the competition are encouraged to submit projects that they have been working on already in class or at home, including those for coursework, meaning that no extra work is necessary. There is no need to have a 'finished product', and your project can be originally from another competition or scheme.

Show your work to our judges, who include professional scientists and engineers, and you'll be in with a chance of winning a prize!

Click here to find out more | Click here to enter your project(s)

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Some of the CSES team at the inaugural Chelmsford Science Festival

Urgently seeking new CSES Secretary

Are you looking for a flexible, low-commitment way to get more involved in the work of CSES and promoting STEM more generally? Do you have a couple of hours you could spare each month?

If so, then the role of CSES Secretary could be for you. We are urgently seeking candidates to fill this vital position. Please do consider putting yourself forward.

The formal role has a few key responsibilities with a very low time commitment (some more details on this below), but you would be able to take part in and volunteer for other activities organised by CSES if you wish, such as the Science Festival, TEXPO, Saturday Club and events in schools. As such, this is an excellent opportunity for someone looking for flexibility. It is also great for someone looking for career development, as the role can be high-profile, with excellent networking and collaboration opportunities with major local organisations.

If you are interested, or know someone who might be, please contact This email address is being protected from spambots. You need JavaScript enabled to view it..

Please note that we are also recruiting for the role of CSES President.

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Centenary Photographic Competition 2024 Poster

Centenary Photographic Competition 2024: Time

For Primary and Secondary Students

Taking a camera or your phone and shooting a picture is an easy. But how about, when composing your image, you think about how your picture might be used to discover some aspect of science and engineering?

STEAM: Science, Technology, Engineering, Arts, MathematicsFrom your camera or mobile phone to a flower or a rainbow, from a bubble to radio mast, from smoke to light, from microscopy to astronomy, everywhere in our modern world we are facing science and engineering wonders that make our lives easier and more fun. This is the fifth year of our competition and we have had some outstanding winners.

Science meets Art – Our annual photographic competition aims at creating an opportunity for you to creatively express what you observe within science, in pictures, and we hope that this will get you to explore the visual aspects of STEAM through the art and science of photography and capture images that demonstrate and communicate STEAM concepts and phenomena.

A person holding a clock in front of their face on a green backgroundA person holding a clock in front of their face on a yellow background

This year 2024,

the focus of the competition is on:


(Including everything from clocks, hourglasses, sundials to biological clocks, sunsets, stars, ancient monuments and more!)

We want you to take photographs (up to 3 entries per person) that express what Time means to you or how it impacts health or our environment, including the negative or positive roles of technology. Each photograph must be accompanied with a short plain language explanation (not more than 50 words) of the thoughts behind your photograph.

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Felsted School Partners with Remap Charity in Innovative Project to Support People with Dementia

Students from Felsted School building an interactive dementia-friendly games console with volunteers from Remap Essex

Read about Felsted's collaboration with Remap following the CSES TEXPO 2023. Words and pictures by Mrs C Bury, kindly reproduced with permission from the Felsted School website.

In a bid to foster connections to the wider world and make a positive impact on the community, Felsted School proudly announces its collaboration with Remap, a renowned charity dedicated to creating bespoke devices that enhance the lives of individuals with disabilities. At the heart of Felsted School's ethos is the commitment to extending its influence beyond the classroom, and the partnership with Remap aligns perfectly with this mission.

Remap, known for its work in utilising design and technology to craft custom devices not commercially available, has found an eager ally in Felsted School's STEM team. Our students are enthusiastically taking on the challenge of developing two memory light-up devices designed to support individuals living with dementia. This innovative initiative aims to demonstrate how science, design, and technology skills acquired in the classroom can be harnessed for tangible, real-world impact.

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Photographic Competition 2024 deadline extended – enter now!

We are pleased to advise that our Centenary Photographic Competition 2024, this year on the theme of Time, is now open until Friday 14 June 2024 to allow for further entries.

We want you to take photographs (up to 3 entries) that express what time means to you, or how it impacts health or our environment, including the negative or positive roles of technology.

The competition is open to primary or secondary aged students living or educated in Essex. We will be looking for photos that are creative in their approach, with an innovative angle on the subject or a creative interpretation of the themes.

There are two categories of entry: one for primary school students and one for those at secondary level. Cash prizes are available!

You can read the full details here or click below to submit an entry.

Click here to submit your entry »

Happy snapping!

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Members of CSES, CCH staff and some STEM club students showing kits and certificate

CSES continues to support schools with technology and engineering

CSES bursary kits granted to Chelmsford County High School for Girls

As part of the ongoing commitment to education, support and inspiration Chelmsford Science and Engineering Society (CSES) has been working with Chelmsford County High School (CCHS) for girls.

CSES member Ed Bye has been working with a group of sixteen keen and enthusiastic year 10 (14/15 years of age) students at Chelmsford County High School.

One lunchtime a week during the autumn term, the students have been exploring control electronic engineering and stored program systems based on the Micro:bit microcontroller.

In the world, there are by far many more devices (microcontrollers) than computers. With increasing electronics finding its way into all sorts of items, this number will grow. As an example, a typical budget low-end car has about 25 microcontrollers, a high-end luxury car can have over 50 microcontrollers.

The current generation of students will be using microcontrollers, developing their own equipment and projects to solve engineering problems. Thus, giving young students some insight and experience with microcontrollers puts them at an advantage and an early start.

To enable some understanding and to provide some practice with this technology, Ed designed a kit of parts to work specifically with the Micro:bit. There is a variety of about 25 sensors and actuators, shown below. These could be used in numerous projects in conjunction with a Micro:bit.

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Students at CSES TEXPO 2024

TEXPO 2024 (save the date) and Big Bang

TEXPO Schools' Competition: Fri 21 June 2024, Anglia Ruskin University

We are pleased to confirm the date for the 2024 CSES Schools' Technology Exhibition (TEXPO).

The dates will be as follows:

  • The TEXPO will take place on Friday 21 June 2024.
  • The awards evening will take place on one evening of Thursday 11 July 2024.

Find out more about the competition here.

We are open for early-bird entries – click here to enter the TEXPO now – and will send further details in the coming weeks.

In the meantime, remember to enter this year's Big Bang competition!

Big Bang Competition 2024 banner

From passion to project

The Big Bang Competition is open for entries! Inspire students to work together, problem solve and get creative with science, engineering and technology. New for this year, celebrate your students' inner innovator with brand-new technology prizes, supported by Siemens.

Entries will close on 27 March at 5pm so you've got plenty of time to start a project!

Find out more about The Competition and how to enter online.

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National Saturday Club: Imagine! Science and Engineering

Science and Engineering Saturday Club 2024

FREE club starting 27 January 2024 for Year 10 students – apply now

Register your interest »

We are excited to announce a fantastic opportunity that is open for all Year 10 students who are studying STEM subjects.

Under the umbrella of the National Saturday Clubs (NSC), CSES and ARU are running another free Science and Engineering Saturday Club. The club will provide an opportunity for Year 10 students to experience a range of different Science and Engineering topics using the state-of-the-art Super Lab and workshop facilities at ARU's Chelmsford Campus. Each session will explore the science and engineering behind real life activities and problems that can affect our daily lives. In addition to laboratory and workshop sessions there are also visits to science and technology-related organisations. The NSC also organise for us a masterclass with leading industry professionals and a Summer Show at Somerset House in June.

Starting on 27 January 2024, the club will run for 15 weeks. The sessions will take place from 10.00 am – 12.30 pm on Saturday mornings during term time.

Download PDF Invitation letter to parents

Download PDF Invitation letter to teachers

The programme is delivered totally free of charge for up to 30 students, so places are limited and we have only a few weeks to recruit. Please see the attached letters to parents and teachers for more information.

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