Diolch am rannu eich sylwadau wrth gofnodi eich data tywydd i wefan Amgueddfa Cymru. Daliwch ati gyda'r gwaith caled Cyfeillion y Gwanwyn!


Eich sylwadau:

Ysgol Y Wern: Roedd Dydd Llun yn stormus a wyntog iawn.

YGG Tonyrefail: Roedd e yn wythnos gwlyb iawn.

Beulah School: Roedd llawer o law ar dydd Llun!

Rougemont Junior School: Heavy rain and sleet on Friday, hope our bulbs will enjoy a cold shower.

Rougemont Junior School: Our baby bulbs are safe and sound in their pots and we have them on display.

Trellech Primary School: We had lots of rain at the weekend so the rain fall on Monday was high. We can’t wait for our flowers to start growing.

St Paul's C.I.W. Primary: Hello pr.plant. We are proud of our work. Professor Plant: And so you should be St Paul’s, keep it up Bulb Buddies!

Ysgol Rhys Prichard: Really cold on Monday. A lot of Rain on Monday too. No Rain on Wednesday, Thursday and Friday.

Ysgol Glanyfferi: Variety of temperatures throughout the week.(R, K and A).

Alston Lane Catholic Primary School: Thursday 17th November - the rainfall was 25mm but I could not upload this as only 20 and 30 were options on the databank. Professor Plant: Hi Alston Lane, when entering the reading please round the figure to the nearest 10mm. So you were right to enter 30mm! But a reading of 24mm would be entered as 20mm on the website. Ellel St John's CE Primary School had a similar problem: ‘Lots of heavy rain on Monday 14th November, we actually measured 31mm of rain but it wasn't available on the drop down menu.’ Keep up the good work Bulb Buddies!

Ysgol Y Wern: Roedd hi'n oer iawn ar Ddydd Gwnener i gymharu ar ddechrau'r wythnos

Lawhead School: The plants were atrociously frozen. They were so frozen that when I tipped the pot out, nothing fell out of it. - J K and T L. Professor Plant: Wow, that is frozen! Don’t worry about your bulbs though, the soil will be insulating them against the cold!

Carnbroe Primary School: The weather has been very frosty and icy all week. On Thursday our class went out to check on the plants. The soil in our pots was frozen but have decided that our bulbs will still flower. Professor Plant: Well done for checking on your plants! I’m sure that your plants will still flower too. Lawhead Primary reported the same: Lawhead School: The week got colder towards the end. The soil in our pots is frozen solid!

Auchenlodment Primary School: After a wet and mild weekend it's been a very cold week. The plant pots have been covered with frost. Professor Plant: A few schools have noticed frost in their pots! I’m sure your bulbs are nice and warm buried in the soil. Keep up the good work Bulb Buddies.

Rougemont Junior School: Not sprouting yet but a few popping out. Professor Plant: Oh dear Rougemont, I hope they are sprouting! If it’s not a green shoot that you can see, but the brown top of the bulb, then you’ll need to put a few more handfuls of soil on top of them!

Stanford in the Vale Primary School: Hello, we have noticed that some of the bulbs have started to pop up. Professor Plant: Hi Stanford in the Vale, do you mean that shoots have begun to appear? If so that’s great news!

Arkholme CE Primary School: It has been very wet as you can see in the data. It has been very cold, we have had our first frost of the winter. On three days of the week when we were collecting the weather data it was raining! Thank you. Professor Plant: Hi Arkholme CE Primary. Thank you for collecting the weather data even though it was raining. Be careful if the school yard is frosty! Keep up the good work Bulb Buddies!

Llanharan Primary School: 7th - 11th November and 14th - 18th November results have been mixed up - is there any way they could be swapped please? Sorry! Professor Plant: Hi Llanharan Primary,  thank you for letting me know the data was mixed up. Not to worry, I have swaped these dates for you. Keep up the good work Bulb Buddies|!

Auchenlodment Primary School: It was dry on Monday but there was a lot of rain over the weekend which was the 5mm recorded on Monday. We have felt the temperature drop over the week, it's getting very cold! Professor Plant: Well done for observing the weather over the weekend even though you are not taking readings on these days. Keep up the good work Bulb Buddies!

St Robert's R.C Primary School: We had a busy week this week and we went on a trip to Cardiff Museum on Friday! Professor Plant: Hi St Robert’s Primary. Wow, I hope you enjoyed your trip!

Broad Haven Primary School: What a week we have had gales-rain-sleet-hail-sun-rainbows. The sea has been very rough with huge waves. Professor Plant: Wow Broad Haven Primary, you really have had a mixed week in terms of weather. It’s interesting to see the effect a strong wind can have on the sea!

Stanford in the Vale Primary School: The weather has turned really cold today.
Been training people to do this experiment during the week. From R xxx Professor Plant: Hi R, thank you for training others to take weather readings, even in the cold! Keep up the good work Bulb Buddy!

St Clare's Catholic Primary School: A very chilly and wet week. We even have some snow today! Professor Plant: I hope you enjoy the snow St Clare’s Catholic Primary! Make sure you wrap up warm!

Ysgol Rhostyllen: We're really enjoying it! Professor Plant: Hi Ysgol Rhostyllen, I’m glad to hear you’re enjoying the project. Keep up the good work Bulb Buddies!

Carnbroe Primary School: It was so cold on Wednesday that we decided to check our plants to make sure they were alright, they looked ok. It rained really heavily all day Thursday and the ground was very wet and muddy. Professor Plant: Hi Carnbroe Primary, well done for checking on your bulbs! The soil will be keeping the bulbs insulated against the cold. Keep up the good work Bulb Buddies.   

Ysgol Rhys Prichard: A lot of rain on Wednesday compared to Thursday and Friday.
It was colder on Wednesday compered to Tuesday. Professor Plant: Hi Ysgol Rhys Pritchard, well done for comparing the results throughout the week. You might find it interesting to use the maps on the Spring Bulbs website to compare your results to those from other schools!

Coppull Parish Primary School: Again the children made all the recordings with no supervision. Well done. Professor Plant: Fantastic work Coppull Primary!

Chorley St James Primary School: It was a very wet week in Chorley! The temperature stayed below 13 degrees. Professor Plant: Hi Chorley Primary, fantastic work! Why not use the graphs on the Spring Bulbs website to compare your results to those of other schools? Keep up the good work Bulb Buddies!


This week is Chemistry Week and our Preventive Conservation team got involved. Two local high schools (St Teilo’s Church in Wales High School and Cardiff High School) were invited to participate in a workshop with live demonstrations and hands-on activities.

We organized the workshop in a collection store and one of our analytical laboratories at National Museum Cardiff. Neither space is laid out for large numbers of people and it’s always a bit of a squash. But once we had squeezed the last of the year 12 and 13 students into each room and closed the doors, there was no escaping the exciting world of analytical chemistry.

The students learned about Wales’s largest and most important mineral collection, the challenges of caring for it, and some of the analytical tools that help us: X-Ray diffraction (XRD), gas detection tubes, infrared spectroscopy (IR) and Nuclear Magnetic Resonance (NMR). The XRD is part of the National Museum's own analytical facilities, operated by Tom Cotterell and Amanda Valentine-Baars in the Mineralogy/Petrology section. The other two technologies are covered by the curriculum and the students enjoyed the opportunity to prepare real samples, analyse them and interpret the results. To them, this made the subject a lot more real than just learning about them from books. It was also important that the analyses were undertaken not simply as a method per se, but in the context of answering genuine research questions at the museum.

What does chemistry have to do with the care of collections? We undertake our own research on objects and specimens in the collections, and we collaborate with researchers at universities. In addition, the act of preserving our common heritage often throws up problems, as objects degrade and conservators need to work out why, and how to stop the degradation.

Often we cannot do this on our own, in which case we work with partners to investigate, for example, the corrosivity potential of indoor pollutants and their effect on mineral specimens in storage at National Museum Cardiff. These partners include Cardiff University’s Schools of ChemistryEngineering and History, Archaeology and Religion (Conservation Department).

One of these collaborations sparked yesterday’s schools engagement project, run in conjunction with the museum's Conservation and Natural Sciences departments and kindly supported and funded by the Royal Society of Chemistry (South East Wales Section). The Royal Society of Chemistry provided an entire bench full of portable analytical equipment for the day, which the society's Education Coordinator, Liam Thomas, set up in the Mineral Store. Because of the interdisciplinary nature of the project, additional support came from Cardiff University’s School of Earth and Ocean Sciences.

Find out more about care of collections at Amgueddfa Cymru - National Museum Wales here.


Sometime at the beginning of the Bronze Age, about 2,250 to 2,000 BC, some people walked through the wetlands where Swansea Bay now lies. Perhaps they used one of the wooden trackways which had been laid across the wet ground, parts of which can still be seen when the tide is out.

They had with them a special object, a fine flint dagger, a piece of exquisite workmanship made by an expert craftsman. The dagger was part of a Europe-wide culture, and was perhaps an important part of their identity.

For some reason the precious object was dropped; perhaps by accident, but more likely left as a deliberate offering in shallow water in a place of special significance.


The dagger remained submerged, first in the water, and then, as the environment changed, in peat beneath the sands of Swansea Bay, for four millennia. Then, in 1971, a student, Paul Tambling and his girlfriend, Angela, were walking across the bay and saw it sticking out of the sand.

They picked it up and took it home, and it became a treasured object once more, associated with happy memories and a unique symbol of their relationship.


Early in 2016 Paul and Angela heard of a flint knapping demonstration being held at Cyfarthfa House Museum in Merthyr Tydfil and decided to take their dagger along to show an expert.

The flint knapper recognised the dagger’s significance and it was reported to Mark Lodwick, the Portable Antiquities Scheme finds co-ordinator at Amgueddfa Cymru.

The dagger was identified as a ‘Beaker Dagger’, more commonly found in south-eastern England, often accompanying high-status burials, with only four other examples known of in Wales.

The discovery was exciting, and Mark contacted Paul and Angela, who brought the dagger in for recording and told him their story.


Ideally, an object of this importance would belong in a public collection in a museum, but it is understandable that Paul and Angela want to keep it, given its personal significance to them.

Happily, a solution has been found in the form of flint-knapper Karl Lee, who attended Swansea Museum’s Welsh Museums Festival event in October and made a replica for display in their galleries.

It will now become a part of Swansea Museum’s Lost Treasures of Swansea Bay project, which invites communities to respond to the deep history of the bay through the many archaeological items found there by members of the public.

Helo Cyfeillion y Gwanwyn,

Diolch am rannu eich sylwadau gyda'r data tywydd wythnos dwytha. Rwyf wedi atodi rhai yn isod. Mae llawer ohonoch yn ddweud bod y tywydd wedi oeri a bod 'na mwy o law. Mae rhai ohonoch chi hyd yn oed wedi cael eira! Dyma pam dwi am esbonio sut mae meteorolegwyr (gwyddonwyr tywydd) yn mesur eira. 

Mae mesur faint o law sy’n disgyn yn hawdd o’i gymharu â mesur faint o eira sy’n disgyn. Fydd eira ddim yn bihafio! Bydd yn aml yn cael ei chwythu gan y gwynt ac yn lluwchio, sy’n golygu bod yr eira’n ddwfn mewn mannau ond yn llawer llai dafliad carreg i ffwrdd. Oherwydd bod yr eira’n disgyn yn anghyson, bydd y mesuriadau o’r llefydd yma’n anghywir! Dyna pam mae’n rhaid mesur mewn mannau gwastad, agored ymhell o ble fydd eira’n lluwchio. Bydd eira hefyd yn chwarae gemau gyda’r Meteorolegwyr sy’n ceisio ei fesur – bydd yn toddi’n ddŵr, cyn rhewi fel iâ. Felly dyw’r eira sy’n cael ei fesur ddim bob tro yn cyfateb i faint o eira sydd wedi disgyn. Mae eira newydd yn disgyn ar ben hen eira hefyd, ac mae’n anodd dweud faint o eira sydd wedi disgyn o un diwrnod i’r llall. 

Mae’n rhaid i’r meteorolegwyr gofio holl driciau’r eira a meddwl am ffyrdd i ddarganfod faint o eira sydd wedi disgyn. Byddan nhw’n edrych ar gwymp eira (faint o eira sy’n disgyn mewn diwrnod) a dyfnder eira (cyfanswm dyfnder yr eira, hen a newydd). Un ffordd o fesur cwymp eira yw gyda ffon bren. Bydd y meteorolegwr yn gosod y pren mewn lleoliad agored lle na fydd eira’n lluwchio ac yn mesur yr eira bob chwech awr. Drwy glirio’r eira o’r pren ar ôl ei fesur, dim ond eira’r diwrnod hwnnw fydd yn cael ei fesur, a gall y gwyddonydd ddweud faint o eira sydd wedi cwympo ar y diwrnod hwnnw. 

Gallwn ni hefyd fesur eira wedi toddi ar ffurf dŵr. Gallwch chi felly ddefnyddio’ch mesurydd glaw i fesur cwymp eira. Os taw dim ond ychydig o eira sy’n cwympo, bydd yn toddi yn y mesurydd beth bynnag, ond os yw hi’n bwrw’n drwm, ewch â’r mesurydd i mewn ac aros iddo doddi’n ddŵr. Gallwch chi wedyn fesur y dŵr fel rydych chi wedi’i wneud bob wythnos, a’i gofnodi fel glawiad yn eich cofnodion tywydd. 

Os oes eira ar lawr a bod digon o amser i arbrofi, beth am fynd ati i fesur dyfnder yr eira? Y cyfan sydd ei angen arnoch chi yw pren mesur (neu pren eira os ydych chi am siarad fel gwyddonydd gwych!). Gwthiwch y pren i’r eira tan ei fod yn cyffwrdd y ddaear a chofnodi pa mor ddwfn yw’r ddaear fesul milimedr. Rhaid i chi fesur o arwyneb gwastad (fel mainc) mewn lle agored lle nad yw’r eira’n lluwchio. Rhaid i chi gofnodi o leiaf tri mesuriad i gyfrifo dyfnder cyfartalog yr eira lleol. Cyfrifwch y cyfartaledd drwy adio’r cofnodion gwahanol a’u rhannu gyda’r nifer o gofnodion. Os ydw i’n cofnodi tri dyfnder o 7cm, 9cm a 6cm, rhaid i fi adio pob rhif (7 + 9 + 6 = 22) cyn rhannu gyda 3 (22 / 3 = 7.33). Dyfnder cyfartalog yr eira felly yw 7.33cm. 

Mae gorsafoedd tywydd fel y Swyddfa Dywydd (MET Office) wedi troi at dechnoleg i ddyfeisio dulliau newydd o fesur dyfnder eira. Edrychwch ar y llun o un o orsafoedd eira’r Swyddfa Dywydd. Mae nhw’n defnyddio synwyryddion laser i fesur dyfnder yr eira ar yr arwyneb gwastad. Gall meteorolegwyr gasglu data o bob cwr o’r wlad wrth wasgu botwm – llawer haws a mwy dibynadwy nag anfon pobl allan i’r oerfel gyda phren eira! Mae pob un o orsafoedd eira’r Swyddfa Dywydd i’w gweld ar y map – oes un yn agos atoch chi? 

Os yw hi wedi bwrw eira, cofiwch fesur y cwymp gyda’r mesurydd glaw neu’r dyfnder gyda phren eira a nodi’r canlyniadau fel ‘Sylwadau’ wrth uwchlwytho eich cofnodion wythnosol. Bydd yn ddiddorol cymharu dyfnder yr eira â chwymp yr eira yn y mesurydd glaw! 

Daliwch ati Gyfeillion y Gwanwyn, 

Athro’r Ardd


Eich sylwadau:

Carnbroe Primary School: The weather in Carnbroe changed throughout the week. It started with beautiful crisp sunny days, snow on Wednesday and finally it rained and rained. Our plants were all well watered. Hooray!!

East Fulton Primary School: We had snow during Tues evening which is why rainfall reading is so high on Wed.

Auchenlodment Primary School: On Tuesday night it snowed so the rain gauge was filled with snow on Wednesday. We had to melt the snow so we could get a reading.

St. Charles Primary School: It was very icy this week and the water in the water gauge was frozen.

Ysgol Y Wern: Mae'r tywydd wedi oeri ond mae hi wedi bod yn heulog.

Arkholme CE Primary School: First really cold weather also got a bit of frost and one of the pots fell over. None of the bulbs have started to sprout yet though.

Stanford in the Vale Primary School: Frosty mornings, bright blue skies we have experienced this week.  Heavy rain on Wednesday.

Henllys CIW Primary: We had a lot of rain on Wednesday and it was cold on Monday

Beulah School: very rainy Tuesday night !!!!!!!!!!

Trellech Primary School: It rained on Wednesday but not any other day of the week. It was fun measuring the rainfall.

St. Nicholas Primary School: We had a lot of rain on Tuesday night.

Barmston Village Primary School: The weather has been rainy this week.

Ysgol Glanyfferi: A wet week in Wales! Getting colder. Looking forward to seeing green shoots.

Broad Haven Primary School: It was very windy to start this week but with some sun. We had more rain and it was cold in the mornings.

Ysgol Rhys Prichard: A lot of rain on Wednesday. Really cold on Tuesday.

Darran Park Primary: The rainfall hasn't been very consistent. On the other hand the temperature has been very consistent has only varied by 1 or 2 degrees.

St. Charles Primary School: It was very icy this week and the water in the water gauge was frozen.

Garstang St. Thomas' CE Primary School: We were on half term this week but Mrs Bosson kept a record of the rainfall and temperature for us.

Professor Plant: Thank you Mrs Bosson!

Breckon Hill Primary School: We have measured the temperature and the rainfall in the location of the pots (front of the school) and in the flower beds (at the back of the school). We have noticed that it is slightly warmer at the front of the school as this area gets a little bit more sun.

Archwilio Achau Emlyn Davies y Draper

Mae'r gwaith o ddatblygu sesiwn i blant am Siop Draper Emlyn Davies yn parhau yma yn yr Amgueddfa Wlân.

Roedd modd dechrau creu llun cyffrous o’r siop a’i  pherchennog trwy bori trwy dudalennau bywgraffiad Alan Owen: Emlyn Davies The Life & Times Of A Dowlais Draper in the first Half Of The Twentieth Century.

I ddechrau, roedd gan Richard Davies (sef enw genedigol Emlyn Davies) linach deuluol drawiadol. Roedd yn perthyn i'r Parchedig John Williams, a oedd yn bregethwr, bardd, cyfansoddwr emynau ac ysgrifwr nodedig; a John Havard a fu’n lawfeddyg ym mrwydr Waterloo.

Ar droad y ganrif ddiwethaf mae’n debyg fod y teulu yn gerddorol tu hwnt, ac yn un o’r rhai cyntaf yn yr ardal i fod yn berchen ar ‘phonograph’, sef dyfais fecanyddol i recordio sain. Mae’n debyg y deuai cymdogion a pherthnasau i fewn yn slei i gyntedd ei cartref i wrando arno!

Blynyddoedd o Eithafion

Bu 1912 i 1914 yn flynyddoedd o eithafion i’r siop a’r ardal:

1912:  Bu streic chwerw yn y gweithfeydd rhwng Mawrth 1af a diwedd Ebrill a gafodd effaith ddifrifol ar fusnesau lleol. Yna i’r gwrthwyneb yn llwyr fe siriolwyd Dowlais ddigysur gan faneri ac addurniadau lliwgar ar Fehefin 29fed pan ymwelodd y Brenin a’r Frenhines â’r dre.

Hydref 1913: Bu trychineb gwaethaf y diwydiant glo yn yr ardal sef Tanchwa Senghennydd, lle cafodd 439 o ddynion a bechgyn eu lladd.

Y stori fwya hynod ac annisgwyl efallai oedd cysylltiad y siop a storm ddifrifol a ddigwyddodd bythefnos ar ôl y digwyddiad ofnadwy hwnnw. Bu corwynt enfawr a chwythwyd a chlwyfwyd Doli - un o geffylau cludo parseli y siop, drosodd yn y gwynt!

1914: Ac ar nodyn ddwysach fyth - yr Ergyd Farwol - Y Rhyfel Byd Cyntaf a’i holl erchylltra a gyffyrddodd â phob cymuned.

Rhyfeloedd Byd: Newid Byd yn Nowlais

Bu byd o newid i nifer o bobl wedi‘r rhyfel byd 1af, ac yn enwedig i ferched. Mae Miriam - Minnie fel y gelwid - merch hynaf Emlyn Davies, yn esiampl o’r effaith yma.

Yn ystod y rhyfel er ei bod hi’n astudio mewn ysgol breswyl yn Aberhonddu, fe ddychwelodd i helpu yn y siop oherwydd bod nifer o’r dynion wedi gorfod mynd i ymladd. Yna, yn 1937 wedi marwolaeth ei thad, etifeddodd y siop mewn cyfnod anodd a thywyll arall.

Fe wnaeth y rhan yma o’r stori a’i chymeriad a’i bywyd hi gynnig ei hun fel spardun i greu sesiwn ysgolion yma yn yr Amgueddfa Wlân.

O fantais hefyd oedd bod hwn yn hanes o fewn côf. Cyffrowyd fi wrth feddwl mod i’n mynd i gael cyfle i wrando ar Mr Owen yn darlunio’r siop yn ystod y cyfnod cythryblus yma.

Cwrdd â Theulu Emlyn Davies

Dyna od fel mae rhywun yn dechrau tueddu dychmygu bod cymeriad mewn ffilm, llun neu lyfr yn parhau i fod yr un oed am byth - ac wrth deithio gyda'r curadur Mark Lucas i fwthyn bach ar gyrion Castell Newydd Emlyn i gyfarfod a Alan Owen (wyr Emlyn Davies), bron i mi argyhoeddi fy hun fy mod yn mynd i weld bachgen bach gyda chapan a throwsus byr a la y 30au!

Yr hyn sydd yn arbennig am gael cyfarfod wyneb yn wyneb a phobl sydd ynghlwm â hanes fel hyn yw eich bod yn cael gwell amgyffred o bersonoliaethau. Cofiai Mr Owen ei dadcu fel person hoffus, cariadus, a charedig - ac er ei fod yn amlwg yn ddyn busnes llwyddiannus gyda chyfrifoldebau mawr yn ei waith a’i gymdeithas, roedd hi’n ddifyr i ddarganfod y berthynas a fu rhyngddynt.

Cofiai fel y deuai ei dadcu ag anrhegion yn ôl iddo fe a’i chwaer bob tro y teithiai ar hyd y wlad ar fusnes. Cofiai gael llwnc o gwrw ganddo hefyd a chael ei gwrsio rownd y cownter!

Soniodd llawer am y gymuned fel yr oedd yn blentyn - roedd llawer o Wyddelod yn byw yn yr ardal yr adeg honno ac roedd  atgofion ganddo am orymdeithiau lliwgar ‘Corpus Christi’yn Dowlais.

Bu Mr Owen a’i chwaer ‘fach’ Mrs .Joan Preston (trwy ebost) yn garedig tu hwnt yn rhannu nifer o’u hatgofion o’r siop yn ystod y rhyfel pan fu eu mham Miriam Owen (Minnie) yn rhedeg y siop – ond eto mwy am hyn yn y blog nesaf!

Y gamp nesaf fydd cwtogi yn ofalus hanes hanner cant o flynyddoedd y siop i script 45 munud!