Knowledge Tree
Belgium
Also known as: Belgian
Facts (20)
Sources
How the Pentagon Started Taking U.F.O.s Seriously | The New Yorker newyorker.com Apr 30, 2021 3 facts
claimMichael Shermer, in a review of Leslie Kean's book, suggested that the wave of silent black triangles seen over Belgium in 1989 and 1990 were likely experimental, classified stealth bombers.
claimMichael Shermer, in a review of Leslie Kean's book, suggested that the wave of silent black triangles observed over Belgium in 1989 and 1990 were likely experimental, classified stealth bombers.
claimMichael Shermer, in a review of Leslie Kean's book, suggested that the wave of silent black triangles observed over Belgium in 1989 and 1990 were likely experimental, classified stealth bombers.
Unidentified flying object - Wikipedia en.wikipedia.org 3 facts
accountIn 1989 and 1990, mass sightings of large, silent, low-flying black triangles occurred over Belgium, which were tracked by NATO radar and jet interceptors and investigated by the Belgian military with photographic evidence.
accountThe Belgian military investigated reports of large triangular objects observed over Belgian airspace between 1989 and 1991.
claimGovernments or independent academics in the United States, Canada, the United Kingdom, Japan, Peru, France, Belgium, Sweden, Brazil, Chile, Uruguay, Mexico, Spain, and the Soviet Union have investigated UFO reports at various times.
The Russia-Ukraine war and its effects on regional geopolitics clingendael.org 2 facts
perspectiveSlovakia, Hungary, and Austria have opposed the European Commission's proposed ban on Russian gas, while France and Belgium have resisted the ban on Russian liquefied natural gas (LNG).
measurementAs of 2025, Hungary and Slovakia continue to import Russian gas via pipelines, while Spain, Belgium, the Netherlands, and France are the largest importers of Russian liquefied natural gas (LNG).
Quest for Strategic Autonomy? Europe Grapples with the US - China ... realinstitutoelcano.org Jun 26, 2025 2 facts
claimChina ranks ahead of the United States as a source of goods imports for most European countries, with the exceptions of Belgium, Ireland, the Netherlands, and Lithuania.
measurementWith the exception of France, the trade imbalance with China has widened for all countries surveyed, with the most significant widening occurring in Slovenia, Germany, and Belgium.
The role of Plant Foods in the evolution and Dispersal of early Humans kernsverlag.com Jul 30, 2022 1 fact
measurementAnalysis of individual amino acids indicates that plant food contributions to protein intake in Neanderthal diets were significant even in cold environments, such as up to 20% at Spy Cave in Belgium.
War in Ukraine | Global Conflict Tracker - Council on Foreign Relations cfr.org Feb 24, 2026 1 fact
claimBelgian and French forces seized a tanker in the North Sea that was suspected of transporting sanctioned Russian oil.
Work environment risk factors causing day-to-day stress in ... link.springer.com Feb 5, 2022 1 fact
claimThe Research Foundation – Flanders, Belgium (FWO) provided funding for the research project under grant number G.0318.18N.
Associations between media parenting practices and early ... - Nature nature.com Jun 5, 2024 1 fact
referenceThe study 'Do specific parenting practices and related parental self-efficacy associate with physical activity and screen time among primary schoolchildren? A cross-sectional study in Belgium' by S. De Lepeleere, I. De Bourdeaudhuij, G. Cardon, and M. Verloigne was published in BMJ Open in 2015.
Seasonal Changes of Serum Gonadotropins and Testosterone in ... frontiersin.org Jan 9, 2020 1 fact
measurementMaes et al. (33) studied 13 healthy men in Belgium (mean age 38.7 ± 13.4 years) and detected no seasonality for testosterone.
War by Proxy: Iran's Growing Footprint in the Middle East - CSIS csis.org Mar 11, 2019 1 fact
claimIran's Ministry of Intelligence (MOIS) has been involved in overseas assassination plots, including a 2018 incident where Belgian and German intelligence and law enforcement agencies foiled a plot to use an explosive device at an Iranian opposition group gathering in Paris, France.
Iran War: Potential Impact on Global Equities - Charles Schwab schwab.com 1 fact
referenceThe MSCI EMU Index includes equities from Austria, Belgium, Finland, France, Germany, Ireland, Italy, Netherlands, Portugal, and Spain.
Paleolithic diet - Wikipedia en.wikipedia.org 1 fact
claimMicrofossils found in dental calculus from Neanderthal specimens Shanidar III (Iraq) and Spy I and II (Belgium) demonstrate that Neanderthals consumed plants and cooked foods.
Scientific consensus on climate change - Wikipedia en.wikipedia.org 1 fact
accountIn 2001, science academies from 17 countries (Australia, Belgium, Brazil, Canada, China, France, Germany, India, Indonesia, Ireland, Italy, Malaysia, New Zealand, Sweden, Trinidad, Turkey, and the United Kingdom) issued a joint statement endorsing the work of the Intergovernmental Panel on Climate Change (IPCC).
Does the combination of sustainable business model patterns lead ... link.springer.com Feb 20, 2023 1 fact
referenceChapman, Eyckmans, and Van Acker (2020) evaluated the impact of car-sharing on car use in Flanders, Belgium, in their article 'Does car-sharing reduce car-use? An impact evaluation of car-sharing in flanders, Belgium'.