What causes the Northern Lights? - Royal Museums Greenwich
The green we see in the aurora is characteristic of oxygen, while hints of purple, blue or pink are caused by nitrogen. “We sometimes see a wonderful scarlet red colour, and this is caused by very high altitude oxygen interacting with solar particles,” adds astronomer Tom. “This only occurs when the aurora is particularly energetic.”.
Royal Museums Greenwich | Home
Book online to guarantee entry and receive updates before you visit.. Select the site or exhibition you want to visit, pick your preferred date and entry time using the booking calendar and complete your booking.Your tickets will be emailed to you as soon as you check out. To make the most of your day out and save 25% on tickets, book a Royal Museums Greenwich Day Pass and get …
The history of the transatlantic slave trade - Royal Museums …
The Middle Passage. The ‘Middle Passage’ was the harrowing voyage experienced by the millions of African captives transported across the Atlantic in European ships, to work as slaves in the Americas. Conditions on board slave ships were appalling: huge numbers of people were crammed into very small spaces.
Dawn, dusk and twilight | Meanings and Timings - Royal Museums …
This is when the Sun's centre is 6° below the horizon, roughly equivalent to Lighting-up time. Lighting-up time is the time in the afternoon or evening when the law states that vehicles must have their lights switched on. In the UK, it is between 30 and 60 minutes after sunset. During civil twilight, the brightest stars are visible and at sea ...
What is the Prime Meridian - and why is it in Greenwich?
The Prime Meridian in Greenwich is marked by a metal line fixed into the Royal Observatory courtyard, and at night by a laser beam. The beam originates from a point above the Airy Transit Circle, the telescope used to determine the Greenwich Meridian. Depending on atmospheric conditions, the beam can be seen from more than 20 km away.
RMS Titanic facts - Royal Museums Greenwich
2019年4月15日 · RMS Titanic statistics. The Titanic was a mighty ship indeed but how did she measure up to the other great liners of her age?. Registered dimensions: Length: 852.5 feet; Length overall: 882.75 feet; Breadth: 92.5 feet; Depth: 59.6 feet; Tonnage: Gross 46,329, Net 21,831; Number of decks. 7. Engines. 2 triple-expansion 8 cylinder engines and 1 low …
What did Galileo discover? - Royal Museums Greenwich
What did Galileo discover? Galileo used observation and experimentation to interrogate and challenge received wisdom and traditional ideas. For him it wasn’t enough that people in authority had been saying that something was true for centuries, he wanted to test these ideas and compare them to the evidence. At the time this was quite a ...
Explore the Collection Online - Royal Museums Greenwich
The online collections search is split into 'Objects', 'Library' and 'Archive'.You can search all the categories together , or use the filters buttons to refine your results. Filtering by objects allows you to explore the items in the Museum's collections, from fine art and photography to timepieces, figureheads and historic relics.; The Library collection includes over 100,000 books, 20,000 ...
Moon landing conspiracy theories, debunked - Royal Museums …
Conspiracy theories surrounding the Moon landings have proved worryingly persistent in the 50 years since Neil Armstrong and Buzz Aldrin took their first small steps on the lunar surface. NASA's landmark achievement is still being challenged. Despite there being a wealth of information online debunking these conspiracy theories, the cries of ...
Tudor fashion - Royal Museums Greenwich
Glossary of Tudor fashion terms. Farthingale (Spanish) A skirt stiffened with hoops of progressively increasing circumference, worn as an undergarment to add volume to the skirt. Farthingale (Drum or French) A padded hoop worn around the waist to widen the skirts at the hip area, causing the skirt to drape. Busk.