Na hInnealtóirí | Tá Maria chun dréimire le córas ulóige dhéanamh. Is féidir leat é seo a thriail sa bhaile! Tá gach rud a bheas ag teastáil uait le feiceáil san fhíseán. Maria is going to make a ladder and a pulley system to raise/lower it. You can try this at home! Everything you need can be found in the video.