All articles starting with B

Bulgarian Social Democratic Party

The Bulgarian Social Democratic Party (Българска социалдемократическа партия, BSDP) is a Bulgarian social-democratic party founded on Buzludzha peak on 2 August 1891 and revived by seven social democrats in November 1989.

Bulgarian St. Stephen Church

Bulgarian St. Stephen Church (Sveti Stefan, Iron Church), Bulgarian Orthodox church in Balat, Istanbul, built of prefabricated cast iron made in Vienna by Rudolph Waagner, 1896–1898, designed by Hovsep Aznavur; restored 2018.

Bulgarian unification

The Bulgarian unification (Съединението) of 6 September 1885 merged the autonomous province of Eastern Rumelia with the Principality of Bulgaria, proclaimed in Plovdiv despite Russian opposition.

Bulgarians (българи)

Bulgarians (българи): South Slavic nation of Bulgaria, 84.6% of 2021 census respondents; formed from Bulgar, Slavic, and Thracian merger; state founded 681; diaspora in the Balkans.

Bulgars

The Bulgars were Turkic-speaking steppe people driven north of the Sea of Azov by the Khazars in the 7th century; their branches founded Danube Bulgaria (681) and Volga Bulgaria (capital Bolghar), and gave modern Bulgarians their name.

Bulgartransgaz

Bulgartransgaz EAD (Булгартрансгаз) is Bulgaria's state-owned natural gas transmission and storage operator, registered in 2007, running about 3,276 km of pipelines, the Chiren storage facility, and the Balkan Stream line.

Bulgasal: Immortal Souls (불가살)

Bulgasal: Immortal Souls (불가살) is a 2021–2022 South Korean tvN dark fantasy drama, 16 episodes, starring Lee Jin-wook and Kwon Na-ra, streaming on Netflix. A cursed immortal bulgasal hunts a reincarnating woman across 600 years, drawing on the Korean metal-eating monster legend.

Bulge bracket

Bulge bracket is informal investment banking jargon for the largest full-service global investment banks, whose names appeared in the largest type on tombstone ads announcing new security issues; membership is convention, with no exact revenue cut-off.

Bulge wave

A bulge wave is a pressure wave that travels along a water-filled elastic tube submerged in the sea, the principle behind distensible tube wave energy converters like the Anaconda.

Bulgogi (불고기)

Bulgogi (불고기) is Korea's marinated grilled beef: thin soy-sauce, pear, garlic, and sesame marinade, lineage from Goguryeo maekjeok through Joseon neobiani, with brothy Seoul and charcoal Eonyang and Gwangyang styles.

Bulguksa

Bulguksa (불국사) is a Buddhist temple on Mount Toham in Gyeongju, South Korea, built in the 8th century during the Unified Silla period to represent the Buddhist Pure Land on earth.

Bulgur

Bulgur (bulgar, bulghur, burgul) is parboiled, dried, partially debranned wheat, usually durum, sold cracked or whole; a Middle Eastern staple, tabbouleh base, and Turkey-dominated trade (HS 190430) with GI about 55-65.

Oct 21, 2026

Buli Bay

Buli Bay (Teluk Buli, Baai van Boeli) is a bay on the east coast of Halmahera Island, North Maluku, Indonesia, between the Eastern and Southeastern Peninsulas; its port at Maba serves East Halmahera's nickel industry.

Bulian power station

Bulian power station (布连电厂), also rendered Bulian Power Plant, is a 1,320 MW coal-fired power plant in Ordos, Inner Mongolia, China, using two 660 MW ultra-supercritical air-cooled units.

Buliangou Coal Mine

Buliangou Coal Mine (不连沟煤矿) is a large underground coal mine in Ordos, Inner Mongolia, China, about 95 kilometers from Hohhot, operated by a Huadian and Mengtai joint venture.

Bulibasha: King of the Gypsies

Bulibasha: King of the Gypsies is a 1994 novel by New Zealand writer Witi Ihimaera, about two patriarchs competing for the title of King of the Gypsies.

Oct 21, 2026

Bulicame Regio

Bulicame Regio, a roughly 498-km-wide region (regio) on Jupiter's volcanic moon Io, IAU-approved in 2006, centered near 34.85°N, 190.82°W, named after a hot sulfur spring in Dante's Inferno.

Bulimia nervosa

Bulimia nervosa, an eating disorder of binge eating followed by purging, fasting, or excessive exercise; first named by Gerald Russell in 1979; affects about 0.3% of US adults yearly, mostly women; treated with CBT and fluoxetine.

Bulinus

Bulinus is a genus of about 38 African and Middle Eastern freshwater planorbid snails that serve as intermediate hosts of Schistosoma haematobium and related blood flukes causing urogenital schistosomiasis.

Bulk (film)

Bulk is a 2025 British lo-fi multiverse sci-fi film by Ben Wheatley, starring Sam Riley, Alexandra Maria Lara, Noah Taylor, and Mark Monero, about a journalist trapped in a house of parallel worlds after a scientist's brane explodes.

Bulk and Skull

Bulk and Skull, Farkas Bulkmeier and Eugene Skullovitch, are Power Rangers' original comic-relief duo, bullies turned heroes played by Paul Schrier and Jason Narvy from 1993.

Bulk carrier

A bulk carrier is a merchant ship that carries unpackaged dry cargo like iron ore, coal, and cement, with the modern type having developed since the late 1950s.

Bulk density

Bulk density, also called apparent density, is the mass of a particulate or porous material divided by its total volume, including voids, and varies with how the particles are packed.

Sep 29, 2026

Bulk electrolysis

Bulk electrolysis is an electrochemical technique that passes current through a solution until a target species is exhaustively converted at a large-area working electrode, for quantification or synthesis.

Bulk Handling Systems

Bulk Handling Systems is an American recycling company founded in 1976 and headquartered in Eugene, Oregon, designing sorting systems and complete material recovery facilities for extracting recyclables from waste.

Bulk heterojunction

A bulk heterojunction (BHJ) is the photoactive architecture of most organic solar cells, blending electron-donating and accepting semiconductors into one network; introduced in 1995, it drove efficiencies beyond 20 percent.

Bulk heterojunction solar cell

A bulk heterojunction (BHJ) solar cell is an organic photovoltaic device whose light-absorbing layer blends electron donor and acceptor materials into a nanoscale network, introduced in 1995.

Sep 29, 2026

Bulk micromachining

Bulk micromachining is a microfabrication technique that forms three-dimensional microstructures by etching into the silicon wafer substrate, used in pressure sensors, accelerometers, and inkjet heads.

Bulk modulus

The bulk modulus is the elastic constant measuring a material's resistance to uniform compression, the ratio of pressure change to fractional volume change, typically expressed in GPa for solids.