Jodrell Bank Observatory equipment in Manchester but electrical interference from the trams on Oxford Road prevented him from doing so. He moved the equipment to Jodrell Bank, south of the city, on 10 December 1945. Lovell's main research was transient radio echoes, which he confirmed were from ionized meteor trails by October 1946. The first staff were Alf Dean and Frank Foden who observed meteors observed with the naked eye while Lovell observed the electromagnetic signal using equipment. The first time Lovell turned the radar on – 14 December 1945 – the Geminids meteor shower was at a maximum. Over the next few
Timeline of the 2011–12 Saudi Arabian protests (May–December 2011) a follow-up protest for the deaths of al-Muhaishi and al-Filfil. On 16 December, about 100 people, mostly women, protested in Riyadh and Buraidah demanding that prisoners be released or tried. About 50 people were arrested in the two cities. Many were released by 23 December. On 23 December, a nationwide mosque sit-in protest again took place in cities including Riyadh and Jeddah, calling for the release of Dr. Yusuf al-Ahmad, imprisoned after having sent a Twitter message in support of prisoners' families. The protestors said that there are 30,000 political prisoners, mostly prisoners of conscience in Saudi Arabia. Thirty men