First patent for paper clip granted to Samuel B. Fay in 1867. Modern Gem type introduced in 1890s with one and a half loops. Most common type uses torsion and elasticity in wire. Regular metal clips weigh about a gram
Creative XP Night Vision Goggles Elite leads with 1640ft viewing range and tripod compatibility. Nightfox Swift offers budget-friendly 75-yard viewing for home surveillance. Luna Optics LN-G3-B50 provides high-resolution imaging and 16.1MP video recording. Zeiss DTI 3/35 features 3937ft IR range and 10-hour battery life. Hexeum Night Vision offers budget-friendly 300m range with 8-17 hour battery life
Apple Pencil is designed specifically for iPad devices. Features electromagnetic sensing and capacitive touch sensors. Offers low latency and palm rejection capabilities. Used for drawing, note-taking, sketching, and digital art
CR2025 is a 3.0V non-rechargeable battery used in various electronic devices. Dimensions are 20mm diameter and 2.5mm height. Typical capacity is 160-170mAh with 0.2-0.3mA discharge current. Operates between -4°F and 158°F temperature range
AirPods Pro features active noise cancellation and IPX4 water resistance. Each model weighs 5.4g, charging case 45.6g. Includes replaceable silicone tips for professional noise isolation. Features custom Apple H1 chip with Bluetooth 5
AirPods Pro 3 case features subtle design updates with different speaker cutouts. New case is slightly smaller and reshaped, affecting cover fit