Great Balls of Fire!

Jana Horak, 9 March 2021

Have you seen the footage of a meteorite fire ball passing through our atmosphere on 28 February? Our team have been working to help scientists find where it made landfall in Gloucester: on a suburban driveway! Since 2019, Amgueddfa Cymru National Museum Wales has been part of the SCAMP (System of Asteroid and Meteorite Paths) UK network, part of UK Fireball Alliance which spots, tracks and helps to locate meteorite falls. Jana Horak our Head of Mineralogy & Petrology explains how and invites you to join her and some of her curatorial colleagues for a behind the scenes, online tour of our meteorite collection during our Amazing Astrology weekend 20-21 March.

Every year curators in the Museum examine, numerous samples of possible meteorites, found by the public. Scientists estimate that around 44,000 kilograms of rock fall from space and land on Earth every day, this may sound a lot, but this equates to a cube just 2.3 meters across. Within the UK alone, it is estimated that 10-20 meteorites a year reach the ground, although the last one to be found was in Cambridgeshire in 1991. In Wales, just two meteorites have been collected to date, as both fell close (or through!) human habitation, both in North Wales. Look at our Mineralogy of Wales pages for more information.

But if we don’t see a meteorite fall, how do we know where to look for them? In arid regions, such as the Sahara Desert, the dark outer layer of a meteorite contrasts with the paler stony desert surface, making the meteorite relatively easy to spot. In Wales, however, our temperate climate produces a well-developed soil and vegetation cover, so a falling stone is easily lost.

The SCAMP camera on the Museum Roof in Cardiff, which records fireball activity, It recorded the Gloucester fireball (28th February 2021) and has contributed to helping to find samples.

When a space rock hurtles towards Earth, pulled by Earth’s gravity, the glow of the fireball or ‘shooting star’ alerts us to this intruder. If we can record the direction (or path) of the fireball, we may be able to pin-point where the meteorite falls. Since 2019, Amgueddfa Cymru National Museum Wales has been part of the SCAMP (System of Asteroid and Meteorite Paths) UK network, part of UK Fireball Alliance (https://www.ukfall.org.uk/) which does just that. A special camera on the roof at National Museum Cardiff, records the motion of any passing fireball. From this data the rate and direction of travel can be determined, and by combining information from other UK cameras, can calculate the location where the meteorite hits the ground.

Since we have had the camera installed, we have recorded several fireballs, but only two are calculated to have resulted in a meteorite fall. The first, near Salisbury in November 2020, was considered too small to attempt to recover, but the recent larger one near Gloucester (28th February 2021) will be a test of the system, as it is estimated to include a piece about the size of an orange.  Should you encounter a recently fallen meteorite it is best to wrap it in some clean aluminium foil or place it in a bag without handling it. It is really important not to test it with a magnet as this may destroy valuable information. You can make contact with us here at the Museum to confirm anything you find.

A sample of the Chelyabinsk meteorite which fell in the Russian Federation in February 2013.

So how might you know if you have found a meteorite, if you don’t see it fall? Although the internal texture of meteorites may vary, the most characteristic feature of them is a fusion crust. This is the dark outer layer, a few millimetres thick, produced by friction melting as the rock as it sped through the atmosphere. When hot and travelling fast, the melt layer is stripped away, reducing the size of the rock, and smoothing its outline. As it slows down, cools and stops glowing the melt layer cools and solidifies, to produce a typically dark and smooth outer surface, which may be crossed by a series of small cracks. The Chelyabinsk meteorite which fell in western Siberia, in February 2013, has a very fresh and well-developed fusion crust .

The most common specimens we see which might be confused with a meteorite are; hematite, particularly where it has a smooth bulbous form, marcasite nodules from the Chalk of the southern England, and samples of slag, a product of Wales’ industrial past. Slag commonly has rounded gas bubble cavities on the surface, something that is uncommon or absent from meteorite fusion crusts.

If you think you have found a meteorite contact the Department of Natural Sciences 

Amazing Astronomy, 20 - 21 March 2021

Full information about our AMAZING ASTRONOMY weekend here

 

Burton and his books

Sioned Williams, 4 March 2021

Richard Burton had many loves in his life but one of his less-known and lifelong was his love of books.

‘...my ‘first love’...is not the stage. It is a lovely book with words in it.’
Richard’s Diary, 20 March 1969

This ‘love’ started to take hold of the then Richie Jenkins during his school days in Taibach, Port Talbot. At the Eastern Boys School his teacher, Meredith Jones, taught him to appreciate the beauty of words and language, in both English and Welsh. Around the age of twelve Richard started collecting books, in particular Everyman’s Library pocket editions of classics. Years later, Richard notes in his diary that he had around 300 Everyman’s by the time he was in his twenties and it had been his childhood ambition to own the entire collection.

Even as a teenager, Richard had an appetite for books which he recorded in the diary he wrote from 1939-40 when he was fourteen. Richard mentions ‘staying in’ to read a book and claimed he was reading on average three books in two days. He would also frequent the town’s library conveniently located in Commercial Road, Taibach - his ‘favourite retreat’ according to his younger brother. Among the books Richard read as a teenager were works by Dickens and Shakespeare. But it was from 1942 onwards, under the influence of his English teacher and mentor, Philip Burton, that books and in particular, Shakespeare left a lifelong mark on Richard.

‘No other writer hit me with quite the same impact as William S. What a stupendous God he was, he is.’
Richard’s Diary, 14 July 1970

Another writer who had a profound influence on Richard was Dylan Thomas. Richard had admired his work from a young age and after playing First Voice in Under Milk Wood in 1954 his voice became forever associated with the poet. Thomas’ influence also appears in the few poems that Richard wrote and especially his 1964 book, A Christmas Story, which drew on his own childhood memories.

From 1965-72, when Richard was at the height of his film career, he kept a series of diaries which reveal the extent of his reading habit. The first entry in the 1965 diary refers to him reading the Encyclopaedia Britannica with his wife, Elizabeth Taylor. He was often given books as presents by family and friends who knew exactly what would please him. On his 46th birthday, Elizabeth bought him ‘the present of presents’, the Complete Oxford Dictionary in microprint with a magnifying glass:

‘To a bibliomaniac it is a thrilling present.’
Richard’s Diary, 11 November 1971

Elizabeth also bought him the entire Everyman Library in the pocket format and had them bound in coloured calf leather. In September 1969, Richard had the time and space to unpack the books in his library at Chalet Arial, Gstaad:

‘It is a fantastic reference library with the index in my head. I shall browse in that place for the rest of my life.’
Richard’s Diary, 29 September 1969

Years later, when Richard was married to Susan Hunt, she presented her husband with ‘a life-saving present’ on their fourth-wedding anniversary – a bespoke portable book-case painted red, his favourite colour:

‘...immensely durably strong which, at a rough calculation will hold a hundred or so really thick tomes and I suppose twice that number of paperbacks...I can’t stop musing at it.’
Richard’s Diary, 22 August 1980

There was no wonder that Richard needed storage for his books as the amount and rate of his reading was immense. When he had time on his hands, he would often read several books in a day and when he was working he would look forward to the next opportunity to buy more books.

‘[...] I am reading anything and everything. Most days I read at least 3 books and one day recently I read 5!’
Richard’s Diary, 24 April 1969

‘I can’t wait for my next day off to augment my library.’
Richard’s Diary, 5 November 1971

Richard had libraries in his various homes across the world in Switzerland, Mexico and on his yacht, the Kalizma. When he travelled he would carry a selection of books with him in his ‘book bag’, like a travelling library. Among the more lightweight paperbacks the book bag always contained The Complete Works of Shakespeare, The Oxford Book of English Verse and various dictionaries, depending on which language he would be learning at the time. He also kept a copy of David Jones’ In Parenthesis at his bedside. Richard’s daughter, Kate Burton, recalled one occasion when he had lost In Parenthesis and while looking for it in his library in Céligny, Switzerland, it miraculously fell out of the shelf behind him.

Although only a small part of Richard’s once vast library is on display in the Becoming Richard Burton exhibition, it reveals the range of his reading. Richard’s greatest passion was for literature but he also enjoyed biographies, history, politics and detective novels. Many of the books have dedications inside from family, friends and writers who knew they would be appreciated and treasured by Richard in his library, his favourite retreat, in his words: ‘the best cell ever for a literary man’.

What are your BBC memories?

Fflur Morse, 3 March 2021

BBC broadcasting in Wales began on 13 February 1923, with the first public radio broadcast from Cardiff. Amgueddfa Cymru-National Museum Wales in partnership with BBC Wales are planning an exhibition to illustrate how the BBC has played a part in the everyday lives of people in Wales ‘informing, educating and entertaining’ over the last 100 years. 

We will be delving into the BBC’s extensive archive and trawling through our stores at Amgueddfa Cymru-National Museum Wales for images, film clips and objects, but we need more.

We want to hear YOUR stories and memories. What are the BBC moments that have stayed with you and why? What channels or radio stations do you most enjoy? What are your memories of BBC TV and radio over Christmas?

As well as your stories, we’d like to hear from you if you have any BBC memorabilia; toys from your favourite TV programmes, stickers, badges, posters, T-shirts.

Get in touch by emailing - collecting@museumwales.ac.uk

A Spring in Our Step

Thomas Lloyd, 3 March 2021

Hello again Bulb Buddies!  Eagle eyed weather watchers like yourselves have had plenty to keep up with recently.  We’ve seen all sorts of weather recently, from snow and frost to glorious spring sunshine.  You might be wondering how all these different types of weather will affect your Baby Bulbs – don’t worry Bulb Buddies, your Baby Bulbs don’t mind going with flow when it comes to the weather.  They can cope with cold, resist rain and handle the heat with ease!

Speaking of the weather, I’d like to say a huge thank you to all Bulb Buddies and their teachers for continuing to upload their weather data when possible.  Please don’t worry if you can’t do so at the moment – we understand everybody’s circumstances are unique and this is absolutely fine!

Many Bulb Buddies have reported beautiful blossoms on their crocuses and daffodils which is fantastic news! It must be such an amazing feeling to see your hard work beginning to pay off.  I always love to hear about Baby Bulbs which have grown into beautiful blossoms so remember to make a note of the date you first notice a flower and let me know by entering the date into the Spring Bulbs website. Every Bulb Buddy is looking after their own Baby Bulb, so in a class of 25 Bulb Buddies for example, that would be 25 dates to enter into the website.  Teachers - if you notice lots of flowers when you return to school you can submit that date you return to school as the flowering date, just leave me a comment in the website to remind me!

Please don’t worry if your Baby Bulbs haven’t flowered yet, they might have been put off slightly by the recent cold weather.  I’m sure they’ll flower in the next couple of weeks as the weather gets warmer!

Of course many Bulb Buddies are still away from school and their Baby Bulbs.  Please don’t worry if you haven’t seen your Baby Bulbs in a while, they will be OK in school!  Fingers crossed Bulb Buddies will be back in the classroom before long, but until then I’ve thought of some fun activities for Bulb Buddies to try at home!  These activities are all about the weather and gardening and will definitely help if you’re missing your Baby Bulbs.  Why not give them a try and share your hard work on Twitter?  My handle is @Professor_Plant and remember to use the hashtag #BulbBuddies!

Thank you all so much for your hard work and dedication Bulb Buddies, teachers and parents.  You’re all Spring Bulb superstars!

Happy Gardening!

Professor Plant.

How to Name Nature

Kelsey Harrendence , 1 March 2021

How to Name Nature

My Professional Training Year placement in the Natural Sciences Department at National Museum Cardiff has been going for a few months now and we are making great progress! We have gotten to the stage where it is time to name the new species of shovel head worm (Magelonidae) that we have spent many months describing and drawing. Shovel head worms are a type of marine bristle worm.

The Island of Mahé in the Seychelles where Magelona mahensis was first described

So, the big question is, how exactly do scientists name the new species they discover? 

All species are named using a system called binomial nomenclature, also known as the two-term naming system. This system is primarily credited to Carl Linnaeus in 1753 but there is evidence suggesting the system was used as early as 1622 by Gaspard Bauhin. You will know them as the Latin names for organisms or scientific names. These names are firstly formed of a generic name, identifying the genus the species belongs to and a specific name, identifying the species. For example, the binomial name for humans is Homo sapiens. Homo is the genus, which also includes our ancestors like the Neanderthals (Homo neanderthalensis) but if you want to specifically refer to modern humans you add the species name, sapiens. So, Homo sapiens is what you get.

Today, binomial nomenclature is primarily governed by two internationally agreed code of rules, the International Code of Zoological Nomenclature (ICZN) and the International Code of Nomenclature for algae, fungi, and plants (ICNafp). Across the two codes the rules are generally the same but with slight differences. As my work focuses on naming animals, I will focus on the rules set out by the ICZN.

The first step in naming a new species is figuring out exactly what to name it after. There are generally 3 main ways to pick a name.

Firstly, you can pick a physical trait of the animal. This trait usually makes it stand out from the other species in its genus. This is my preferred method of naming because it gives people an impression of what it is like just by its name. For example, European robins are given the binomial name Erithacus rubecula and rubecula is derived from the Latin ruber, meaning red which emphasises the robin’s iconic red breast.

A robin, Erithacus rubecula from our collections

An example of a shovel head worm with a name like this is Magelona cepiceps, translating from the Latin cepa for onion and ceps referring to the head. This relates to the shape of the ‘head’ (prostomium) of the worm resembling an onion!

Shovel head worm, Magelona cepiceps

Secondly, you could name the new species after the place it was discovered. It’s not as descriptive as naming the animal after a physical feature but tells you where you may find it. The binomial name for the Canada Goose is Branta canadensis, displaying that although the bird is a common sight in many places thanks to its introduction, it is originally from Canada.

Canadian Goose, Branta canadensis (photo: Cindy Howells)

A shovel head worm with a regional scientific name is Magelona mahensis, indicating that it is from the island of Mahé in the Seychelles.

Shovel head worm, Magelona mahensis

The Island of Mahé in the Seychelles where Magelona mahensis was first described

 

 

 

 

Lastly, you can name it after someone. Of course, a person’s first instinct might be to try and name a species after themselves. The ICZN doesn’t have a rule explicitly against this but it is seen as a sign of vanity. But perhaps if you name enough species in your field, eventually someone may name a species after you. This is my least favourite way to name species because it may not tell you anything about the species at all, but it is nice to give honour to those that are important to us or those who have put in a lot of work in the field. For example, in honour of Sir David Attenborough’s 90th birthday a dragonfly was named after him, taking the name Acisoma attenboroughi. Attenborough has inspired so many scientists that he has around 34 species named after him currently. There is a shovel head worm named Magelona johnstoni which is named after Dr George Johnston, one of the first scientists to describe shovel head worms.

Shovel head worm, Magelona johnstoni named after George Johnston (Photo: Andy Mackie)

While the names can be taken from words in any language they must be spelt out in the Roman alphabet, ensuring they can be universally read. Many binomial names are formed of words from ancient Greek but have been Latinised. Typically, if you have selected a physical feature it is translated into Greek or Latin. There are several books specifically written for helping scientists translate and create new species names.

Brown's Composition of Scientific Words - a book used when deciding on names for species

To Latinise the name, you have selected you have to make sure it follows the rules of Latin grammar. This is where it gets a little complicated as you have to start considering the genus name of the species. Latin has masculine, feminine and neutral words, you can tell this by how the word ends. The gender of the genus name will affect the ending and gender of your species name.

And with that information you are just about ready to name your species!

It might seem like a lot of things to consider when you are naming a new species, believe me I never expected to know this much about Latin grammar! But these rules are incredibly important to ensure we can orderly name and keep track of each of the fascinating organisms that are discovered and allows everyone to universally understand which animals scientists are talking about. Especially when you consider that there are over 12,000 known marine bristleworms globally and that number is increasing.

Once all of the drawings and descriptions are complete, the scientific paper goes through a peer-reviewed process where other experts in the field consider your decision to describe and name the new species. If the reviewers agree the species is formally described and those that were involved are now the species authorities. In scientific journals the species name will be written down followed by the names of those who described it and the year it was described. So, while you might not name a species after yourself, whenever the species is mentioned you will get recognition for the work you have done.

So, what will our new species be called?........Well, you’ll have to stay tuned to find out........