SIM Free Huawei P30 Pro 128GB Mobile Phone – Aurora Blue

An aurora (pl. aurorae or auroras), also commonly known as the northern lights (aurora borealis) or southern lights (aurora australis), is a natural light display in Earth's sky, predominantly seen in high-latitude regions (around the Arctic and Antarctic). Auroras display dynamic patterns of brilliant lights that appear as curtains, rays, spirals, or dynamic flickers covering the entire sky.

Auroras are the result of disturbances in the Earth's magnetosphere caused by the solar wind. Major disturbances result from enhancements in the speed of the solar wind from coronal holes and coronal mass ejections. These disturbances alter the trajectories of charged particles in the magnetospheric plasma. These particles, mainly electrons and protons, precipitate into the upper atmosphere (thermosphere/exosphere). The resulting ionization and excitation of atmospheric constituents emit light of varying colour and complexity. The form of the aurora, occurring within bands around both polar regions, is also dependent on the amount of acceleration imparted to the precipitating particles.

Most of the planets in the Solar System, some natural satellites, brown dwarfs, and even comets also host auroras.

Blue is one of the three primary colours in the RYB colour model (traditional colour theory), as well as in the RGB (additive) colour model. It lies between violet and cyan on the spectrum of visible light. The term blue generally describes colours perceived by humans observing light with a dominant wavelength that's between approximately 450 and 495 nanometres. Most blues contain a slight mixture of other colours; azure contains some green, while ultramarine contains some violet. The clear daytime sky and the deep sea appear blue because of an optical effect known as Rayleigh scattering. An optical effect called the Tyndall effect explains blue eyes. Distant objects appear more blue because of another optical effect called aerial perspective.

Blue has been an important colour in art and decoration since ancient times. The semi-precious stone lapis lazuli was used in ancient Egypt for jewellery and ornament and later, in the Renaissance, to make the pigment ultramarine, the most expensive of all pigments. In the eighth century Chinese artists used cobalt blue to colour fine blue and white porcelain. In the Middle Ages, European artists used it in the windows of cathedrals. Europeans wore clothing coloured with the vegetable dye woad until it was replaced by the finer indigo from America. In the 19th century, synthetic blue dyes and pigments gradually replaced organic dyes and mineral pigments. Dark blue became a common colour for military uniforms and later, in the late 20th century, for business suits. Because blue has commonly been associated with harmony, it was chosen as the colour of the flags of the United Nations and the European Union.

In the United States and Europe, blue is the colour that both men and women are most likely to choose as their favourite, with at least one recent survey showing the same across several other countries, including China, Malaysia, and Indonesia. Past surveys in the US and Europe have found that blue is the colour most commonly associated with harmony, confidence, masculinity, knowledge, intelligence, calmness, distance, infinity, the imagination, cold, and sadness.

Huawei Technologies Co., Ltd. ( HWAH-way, WAH-way; Chinese: 华为; pinyin: ) is a Chinese multinational conglomerate technology corporation headquartered in Longgang District, Shenzhen, Guangdong province. It designs, develops, manufactures and sells digital telecommunications equipment, consumer electronics, smart devices, distributed operating systems, electric vehicle autonomous driving systems, and various rooftop solar products. The corporation was founded in 1987 by Ren Zhengfei, a former officer in the People's Liberation Army (PLA).

Initially focused on manufacturing phone switches, Huawei has expanded to more than 170 countries to include building telecommunications network infrastructures, providing equipment, operational and consulting services, and manufacturing communications devices for the consumer market. It overtook Ericsson in 2012 as the largest telecommunications equipment manufacturer in the world. Huawei surpassed Apple and Samsung, in 2018 and 2020, respectively, to become the largest smartphone manufacturer worldwide. As of 2024, Huawei's biggest area of business is in telecommunications equipment. Its largest customer is the Chinese government.

Amidst its rise, Huawei has been accused of intellectual property infringement, for which it has settled with Cisco. Questions regarding the extent of state influence on Huawei have revolved around its national champions role in China, subsidies and financing support from state entities, and reactions of the Chinese government in light of opposition in certain countries to Huawei's participation in 5G. Its software and equipment have been linked to the mass surveillance of Uyghurs and Xinjiang internment camps, drawing sanctions from the United States.

The company has faced difficulties in some countries arising from concerns that its equipment may enable surveillance by the Chinese government due to perceived connections with the country's military and intelligence agencies. Huawei has argued that critics such as the US government have not shown evidence of espionage. Experts say that China's 2014 Counter-Espionage Law and 2017 National Intelligence Law can compel Huawei and other companies to cooperate with state intelligence. In 2012, Australian and US intelligence agencies concluded that a hack on Australia's telecom networks was conducted by or through Huawei, although the two network operators have disputed that information.

In the midst of the China–United States trade war that started in January 2018, the United States alleged that its sanctions against Iran were violated by Huawei, which was subsequently restricted from doing business with American companies. The US government also requested the extradition of Huawei's chief financial officer from Canada. In June 2019, Huawei cut jobs at its Santa Clara research center, and in December Ren said it was moving to Canada. In 2020, Huawei agreed to sell the Honor brand to a state-owned enterprise of the Shenzhen government to "ensure its survival" under US sanctions. In November 2022, the Federal Communications Commission (FCC) banned sales or import of equipment made by Huawei out of national security concerns, and other countries such as all members of the Five Eyes, Quad members India and Japan, and ten European Union states have since also banned or restricted Huawei products.

Pro is an abbreviation meaning "professional".

Pro, PRO or variants thereof might also refer to: