Tag Archives: experiments

Science Museum vine.

Explainer Vines

Eddie, a Science Museum Explainer, on demonstrating science in six seconds.

Are you following the Science Museum Learning team on Twitter? We share lots of interesting facts, ideas and suggestions for teachers (and for anyone else interested in learning about science as well).

We post Vine videos highlighting some of the best experiments and exhibits that we have at the Science Museum. I make these short six second videos, and I thought I’d take this opportunity to share my favourite videos with you.

Alka seltzer rocket

The alka seltzer rocket is part of our Materials demo. The film canister is fired into the air when gas produced by the alka seltzer tablet expands inside. This was quite a tough Vine to film as the launch is a little unpredictable!

Cornflour on speaker

This experiment is part of our Sound demo, although it’s actually an experiment that demonstrates a material phenomenon. This substance is cornflour mixed with water, which is a non-newtonian fluid. When sound travels through the mix, it gives it energy to lock together in a solid shape.

Newton’s Wheel

The Newton’s Wheel is part of out Light Demo, and is one of our most popular Vines to date. This very simple experiment shows how white light is made up of all of the different colours of the rainbow blended together. When the wheel spins around, our eyes can’t differentiate all the different colours, and it appears as white.

Jumping Ring

You can find the jumping ring in Launchpad, in the Magnetism section. The metal ring is launched into the air by a powerful electromagnet at the base of the pole. This experiment needed the help of Explainer Ben to press the button for me, so we could get the jump in shot!

Plasticine Peter

This smashing experiment is part of our Supercool schools event, which is all about heat and its effect on different materials. We use plenty of liquid nitrogen in this show to demonstrate some of these temperature changes, such as letting our friend here, Plasticine Peter, “cool off”. This is my favourite vine that we’ve ever produced.

CO2 in Bubble Mix

When you put solid carbon dioxide into water, it begins to sublime. This means it goes straight from a solid into a gas, without going through a liquid phase. When we sublime it in bubble mix, it makes some incredible CO2 filled bubbles, which in our tube, makes a Bubble Volcano! It also created a bit of a mess on the floor!

We’ve done almost eighty Vines now on the channel, and there’s more on the way, so make sure to stay tuned to @SM_Learn for all the best experiments that the Science Museum has to offer, in six seconds or less.

Revealing the invisible

Adam Stoneman, Explainer at the Science Museum looks at the impact of the early photographic experiments in Media Space exhibition Revelations, and wonders whether today’s innovations will have the same lasting influence.

Revelations: Experiments in Photography at Media Space, Science Museum © Kate Elliott

Revelations: Experiments in Photography at Media Space, Science Museum © Kate Elliott

Revelations: Experimentations in Photography traces the impact of early scientific experiments on the history of photography and showcases the innovative scientists and artists who strived to see the world anew.

Early pioneers like Alan Archibald Campbell-Swinton and Eadweard Muybridge were driven by a desire to reveal the invisible processes and structures of our physical world. This desire is still with us and today there are countless magazines, websites and blogs dedicated to sharing photographic experiments – both dark room and digital – but has the popularisation of these once revolutionary photographic techniques – x-rays, high-speed photography photomicrography etc. – diminished the ‘revelatory’ impact they once had? After all, a revelation only happens once.

Bullet Through Lemon, c. 1955 - Color © Harold Edgerton, MIT, 2015, courtesy of Palm Press, Inc.

Bullet Through Lemon, c. 1955 – Color © Harold Edgerton, MIT, 2015, courtesy of Palm Press, Inc.

The development of technology over the last 100 years has made photography popular and accessible. Almost all of us carry a relatively high quality camera with us on our phones these days, and digital reproduction has expanded the audience for photographic experiments. Bernice Abbott’s now iconic MIT photographs became widely known as illustrations in physics textbooks but today blogging and photo-sharing websites like Flickr and Instagram foster a much wider, international audience for photographic experimentation. Harold Edgerton’s early experiments helped to popularise the stroboscope; a once obscure laboratory device for photographing objects at high speed; and now slow motion photography is part of our everyday visual language. Ubiquitous on advertising billboards and in music videos, slow motion imaging is also an internet phenomenon; the Slow Mo Guys, a Youtube channel dedicated to capturing high-speed processes like exploding watermelons and bursting balloons, have 5.5 million subscribers and over 500 million views.

Thanks to pioneers such as Edgerton and Étienne Jules Marey, many of the photographic techniques featured in Revelations have become a familiar part of our visual culture, but we shouldn’t forget how astounding these techniques once were.

Chronophotograph of a Man Clearing a Hurdle, c.1892, Étienne Jules Marey © National Media Museum, Bradford / SSPL

Chronophotograph of a Man Clearing a Hurdle, c.1892, Étienne Jules Marey © National Media Museum, Bradford / SSPL

The story goes that when French film pioneers the Lumière brothers first screened their film Train Pulling Into a Station in 1895, audiences jumped out of their seats for fear of their lives. Early films like this one had a frightening effect on people because of their novelty – it was unlike anything they had experienced before. 120 years of cinema history later and we have become very used the medium of film, so that a sequence of a train pulling into a station is unlikely to carry the same impact (although more recent advances in 3D technology and motion simulation as featured in the Science Museum’s IMAX and Discovery Motion Theatre might come closer to simulating the original shock of the Lumière brothers’ film!).

The innovative photographic techniques displayed in Revelations may have lost their novelty but viewing these photographs today it is hard to deny how striking and effective they still are as images.

Why is this? Certainly it helps that the exhibition frames them in terms of their historical significance, which makes their innovative aspect clear. The remarkable aesthetic quality of these early photographs is also important to consider, and this is especially evident when you see them alongside art photography (the great originality of this exhibition). The photographs taken by Edgerton during his time at the Massachusetts Institute of Technology demonstrate a visual sensibility in their complementary pastel backgrounds and Alfred Ehrhardt and Carl Strüwe’s photomicrographs show an interest in the ‘abstract beauty’ of microstructures.

Proboscis of the Hummingbird Hawk Moth, 1928, Carl Strüwe © Carl Strüwe Archive, Bielefeld, Germany  VG Bild-Kunst

Proboscis of the Hummingbird Hawk Moth, 1928, Carl Strüwe © Carl Strüwe Archive, Bielefeld, Germany VG Bild-Kunst

No doubt the experiments in photography being carried out today and shared online to vast audiences will soon lose their initial ‘novelty’ impact. Whether their value as striking and ‘revelatory’ images will last, however, is a question for future generations.

Revelations: Experiments in Photography is at Media Space until 13 September 2015. Click here to book tickets. An accompanying book edited by co-curator Ben Burbridge, entitled Revelations and co-published with MACK, is available to buy online from the Science Museum Shop. The exhibition transfers to the National Media Museum, Bradford where it will run from 19 November 2015 to 7 February 2016.

Our infamous Sound Switcher in action last Half Term.

The Open Lab experience

Entertaining stampeding children, discussing the complexities of the human mind, and making people marvel at incredible illusions – all part of a day’s work at Lottolab. For those of you who haven’t heard of Lottolab, it’s a perception research space and the only place in the Science Museum where multiple real science experiments take place. For the past few months I have volunteered at Lottolab and gained great insight into a totally unique and highly interactive museum experience.

Unlike other museum spaces, Lottolab doesn’t have many exhibits in the usual sense. In fact, on entering you could be forgiven for thinking you’ve stumbled into a forbidden section, perhaps a sort of experimental wing. And in a way you’d be right. Lottolab is experimental in so many ways; take a look at this video for an overview:

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Rather than spending hours reading signs about old bits and pieces, here you’re more likely to find yourself approached by a rather charming volunteer and asked to take part in an experiment. Not just any old experiment though – a perception study (and they’re the most fun, because they’re about you!). You might even end up blindfolded, trying to navigate your way around a maze, using only an iPod application which converts colour into sound.

The most impressive part of the maze experiment is that it’s designed by kids. A key philosophy of Lottolab is that people shouldn’t only take part in experiments, but also make them. It’s this high level of public participation that inspires everything we do. Many of our studies end up published in scientific journals and so contribute to the formal advancement of scientific knowledge.

Our infamous Sound Switcher in action last Half Term.

During my time at Lottolab, I created the short video you can see above, with Program Manager David Robertson explaining the lab and its mission (as well as showing people attempting the blindfold experiment). Hopefully it gives you a sense of what a totally unique and truly interactive place Lottolab is. Whether you want to take part in an experiment, suggest your own or simply admire some incredible tricks of the mind, there’s something for you here.

Lottolab are open in the Science Museum until the 20th of April, on Tuesdays and Wednesdays (12-4pm) next to the Energy Gallery on the second floor – though we hope to be reopening in a new-look gallery in the summer, so stay tuned if you don’t get to pay us a visit this time. We look forward to meeting you!

This post, and the associated video, were created by Lottolab volunteer Samuel Cavenagh.