36K views · 318 reactions | On March 15, 2025, Serbian police allegedly used an LRAD sound cannon against peaceful protesters in Belgrade during a massive anti-government demonstration. Eyewitnesses reported a terrifying noise causing panic, pain, and disorientation. Despite government denials, photos showed an LRAD-equipped vehicle. NGOs collected thousands of testimonies, demanding an international investigation into the unlawful use of this acoustic weapon. | Historyinmemes | Facebook

Auscultation Sound Test 👂 You perform auscultation of the chest starting at the left fourth intercostal space, using light pressure, on the adult/diaphragm side of a 3M Littmann Classic III Stethoscope. You hear the following sounds: 1. A soft early diastolic murmur 2. A late systolic murmur 3. A third heart sound 4. All of the above Did you pick answer 1? Explore the art of auscultation with our Littmann learning app. https://s.3m.com/z3vvq | Littmann

 Reminder: At 12pm, October 5th, Long Range Acoustic Device (LRAD) emergency alert will sound throughout Southern Marin for its monthly test.⁠ ⁠ Please don't call 911 when you hear the sirens. Use 9-1-1 for life-threatening emergencies only. ⁠ ⁠ If you hear the siren at any other time, tune in to KQED 88.5 FM, KCBS 740 AM or KGO 810 AM and local TV stations for further information.⁠ ⁠ Learn more at www.SMFD.org/LRAD | Southern Marin Fire District | Facebook