Çöl Karıncalarının Manyetik Algılama Duyusu Olduğu Anlaşıldı
Çöl karıncaları (Lat. Cataglyphis), yaşamlarının ilk haftalarını yuvada geçirir. Yaklaşık dört hafta boyunca kraliçeyi ve yavruları besler, tünel kazar, odacıklar inşa eder ve ortalığı temizlerler. Bir noktada yuvadan ayrılır ve ölene dek avcı-toplayıcı olarak çalışacakları arazi kariyerlerine geçiş yaparlar.
Discovery riding a column of flame toward the ISS during the launch of STS-121. Three posts ago we explored the Shuttle’s flight control software logic, including the Backup Flight System or BFS. Essentially, the Shuttle had 4 primary general purpose computers (GPCs) running the flight control and guidance software: PASS (Primary Avionics Software System). If all four failed, disagreed, had fatal software failures or had improper data inputs then the final 5th GPC running a completely different and much simpler software could be engaged to save the vehicle, this was the BFS. Even when not engaged the BFS was ‘watching’ the guidance and keeping track of the vehicle’s position, rates and flight phase mode so that it was ready to takeover if required. Down-mode (changing to BFS) was an onboard decision (crew could decide and execute) in the following cases: 1. Impending loss of control. 2. Failure of an expected maneuver to occur. 3. Unexplained attitude/rate excursions or undamped oscillatory motions. For example, if the vehicle failed to start the roll maneuver BFS had to be engaged by the crew without prompting from mission control. During ascent the crew had 10 seconds to engage BFS for most guidance failures to avoid vehicle loss of control. During re-entry this was increased to 45 seconds. To engage the BFS, the crew used the red pushbutton located on the commander/pilot's rotational hand controllers (RHCs) see images for location. It was critical after engaging to ensure all 4 GPCs has relinquished control to the BFS to prevent dual commands. =
[Sources] video/images/data: nasa.com, SCOM (NASA 2012).
VINE seems to be coming backkkk 👀
Vine resurfaces with an all new app bringing back all the content you know and love! Head to your App Store and search for ‘V2’ for an early access look at the platform. Do you think it will be hot or a flop? One things forsure, we’re all excited for new vine references 🤣 -