Experiments that should have been banned! ❌

@drbahaadmourInside the Heart | Blood Leaves and Remains 🔄🫀 ────────── Your heart does not empty completely with every beat. 🔬 The left ventricular ejection fraction, or LVEF, measures how much blood the left ventricle pumps out during contraction. For example, an LVEF of 64% means the left ventricle ejects 64% of the blood volume it contains at the end of filling, while about 36% remains inside before the next heartbeat refills it. A value of 64% is within the usual normal range. Blood then

Other Countries vs Our Countries: Science Class Differences

🔥Eine Geschichtsstunde und Analyse aktueller Ereignisse: In welchem Jahr wurde die Ukraine erstmals erwähnt? Was hielt der Hypatius-Kodex fest? Warum unterstützen Russen die СВО ? #чатрулетка# #historytime #analis# #interestingfacts

Three Ancient Objects Nobody Can Explain

Buried Beneath White Sands Was a Discovery No One Expected #whitesands #ancienthistory #archaeology

The Scientific Method: Steps and Examples

Understanding The Steps Of The Scientific Method

Using the Scientific Method - How To Conduct a Science Experiment