The lungs are the only organs that can float on water. The shortest explanation is that air is less dense than water. With air in our lungs, we float. Each lung cavity has about 300 million balloon-like structures called alveoli. Proper breathing is crucial to swimming because you’d sink (not to mention, drown) without air in your lungs.
100 Mind-Blowing Crucial Facts
Antarctica is home to the largest ice sheet on Earth. More than six times as large as Greenland, Antarctica is the southernmost continent and is the coldest and windiest place on Earth – with temperatures that can drop as low as -89.2°C and winds that can exceed 320 km per hour. Antarctica is home to the largest ice sheet on Earth, containing a staggering 30 million cubic kilometres of ice. This represents an incredible 70% of Earth’s freshwater and 90% of its ice. As a result, changes to the Antarctic ice sheet can have significant implications for global sea levels and ocean currents. Monitoring the Antarctic ice sheet is therefore of paramount importance and satellite data plays a crucial role in this effort. Data from satellites such as CryoSat, ESA’s ice mission, allow scientists to track changes in the thickness and movement of the ice sheet over time, providing insights into how it is responding to a changing climate. ESA has recently teamed up with NASA and the British Antarctic Survey (BAS) to carry out an ambitious campaign in Antarctica which involved taking simultaneous measurements of sea ice from ESA’s CryoSat and NASA’s ICESat-2 satellites. This research is essential for informing policy decisions on issues such as climate change and sea level rise, and for developing strategies to mitigate their impact on coastal communities around the world.
Trees are breathers. Trees are one of the most effective tools we have to combat climate change. Forests are home to around 80% of biodiversity on land and tropical forests alone produce over 40% of the oxygen we breathe. Covering around 30% of Earth’s land surface, we depend on forests for our survival. Forests absorb around 8 Gigatonnes a year of carbon dioxide from the atmosphere and play a crucial role in the carbon cycle and climate system. However, climate change, forest degradation and deforestation are causing much of this stored carbon to be released back into the atmosphere. Recent research found that recovering tropical forests was only successfully combating a quarter of the current carbon emissions which indicates the importance of preserving and restoring our tropical forests. To better understand the role of trees in regulating our planet’s carbon cycle, ESA’s upcoming mission called Biomass will use advanced radar technology to measure the amount of carbon stored in Earth’s forests and other biomass, providing a more accurate assessment of carbon storage and uptake than ever before. By monitoring changes in biomass over time, scientists will be able to assess the effectiveness of forest conservation efforts and better understand the impact of deforestation on our climate.
Linux isn’t just used on Earth. To get insights into life on Mars, a crucial mission was planned by NASA in 2020 where the robotic helicopter that accompanies the rover on Mars runs on Linux. Essentially, Linux landed on Mars and is flying as you read this.
Osama bin Laden Case: The NSA played a crucial role in finding and eliminating Osama bin Laden through foreign signals intelligence (SIGINT). The agency’s SIGINT cycle was instrumental in tracking down the terrorist leader.