Quadrantids Quadrantids The Quadrantids (QUA) are a January meteor shower. The zenithal hourly rate (ZHR) of this shower can be as high as that of two other reliably rich meteor showers, the Perseids in August and the Geminids in December, yet Quadrantid meteors are not seen as often as meteors in these other two showers, because the peak intensity is exceedingly sharp, sometimes lasting only hours. Additionally, the meteors are quite faint (mean magnitude 3-6 mag). The meteor rates exceed one-half of their highest value for only about eight hours (compared to two days for the August Perseids), which means that
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