Development in area of Artificial Intelligence, Machine Learning, Deep Learning.

Weather balloon What?  A weather balloon (or sounding balloon) is a high-altitude balloon made of flexible latex or neoprene, filled with helium or hydrogen.  It carries a small, battery-powered instrument package called a radiosonde to collect and transmit real-time data on atmospheric pressure, temperature, humidity, and wind speed. Why? Weather balloons provide crucial "upper air" data that cannot be captured by ground radar or satellites.  Meteorologists rely on these vertical atmospheric profiles to predict severe storms, winter precipitation (e.g., distinguishing between snow and freezing rain), and wind shear. How? Ascent : Launched from the ground, the balloon rises at about 5 meters per second, ascending into the stratosphere up to altitudes of 30,000 to 40,000 meters (100,000 to 130,000 feet). Expansion and Burst : As it rises and atmospheric pressure drops, the gas expands until the balloon stretches to roughly four times its original size and eve...

Facial reconstruction - Forensic Science  Facial reconstruction often called forensic facial approximation—is the process of recreating the face of an unknown individual from their skeletal remains to aid in identification or archaeological study.  The primary techniques are  - manual (clay sculpting)   - computer modeling (2D drawing, and 3D). 1. Manual Clay Sculpting (Physical 3D)This traditional method, often using the Manchester or Russian/Anatomical approaches, requires in-depth knowledge of physical anatomy, muscle structure, and anthropology. Process: The skull (or a high-quality cast replica) is mounted on a stand. Cylindrical pegs or markers representing standardized soft-tissue thicknesses are glued to anatomical landmarks on the skull. Modeling: Clay is then packed into the spaces between the markers to build up the mimicry of facial muscles, fat layers, and glands. Feature shaping: Specialized sculpting tools are used to add artificial ey...

Micro plastic in human body  Microplastics—tiny plastic fragments and nanoplastics measuring less than 5 mm—are ubiquitous in the environment and have been detected throughout the human body, including vital organs, blood, breast milk, and the placenta.  Ongoing research indicates potential risks for cellular damage, hormone disruption, and inflammation. How Microplastics Enter the Body? Plastics are ingested through food and water (especially via bottled water and synthetic food packaging),  inhaled from indoor and outdoor air,  can even enter through skin contact with personal care products.  Once inside, the smallest nanoparticles can cross biological barriers and circulate in the bloodstream. How to Reduce Exposure While it is currently impossible to avoid microplastics entirely, you can significantly reduce your exposure and help your body manage the accumulation 1.Dietary Choices : Prioritize a High-Fiber Diet to promote bowel movements and help your body ...

Morse code STEM activity  Kids can build a basic telegraph circuit and engage in offline code-breaking challenges.  These hands-on activities blend electrical engineering, logic, and a fun way to send secret messages. Hands-On Circuit Building Build a functioning telegraph system using basic electronics Components  A 3V battery pack,  an LED,  a power buzzer,  a push switch. Wire the components in a simple series circuit. When the switch is held down, it completes the circuit, allowing current to flow so the LED flashes and the buzzer sounds. The Coding:  Use short presses for "dots" and longer presses (about 3 seconds) for "dashes" to spell out messages. Send secret messages for other group to decode.     Compiled by Ms Naresh kuwar 

Ozobot Boat Race -STEM activity You can turn an Ozobot into a "boat" for a race by attaching it to a lightweight foam or paper boat hull. Since Ozobots use optical sensors on their bottom, the robot should sit in the hull with its wheels touching the track directly underneath.  Ozobots are not designed for water and will break if submerged. Instead, they power boat races on "dry water" by following black lines drawn on paper. The Boat Build the Boats The Hull: Use lightweight materials like craft foam, cardboard, or a paper cup. Cut a center hole so the Ozobot can drop in. The bot's wheels must make solid contact with the racing surface to propel the boat forward. The Tracks Use thick black markers to draw the path. Speed Codes: Draw short sequences of colored blocks (like Blue-Red-Blue for "Nitro Boost") along the line so your Ozobot-powered boat speeds up during certain sections. Obstacles & Turns: Incorporate Color Codes to make your...

"The best thing since sliced bread" Meaning of this famous idiom used to describe a brilliant new invention, idea, or innovation that makes life significantly better or easier. History of the Phrase The expression originated in the United States around the late 1920s to the 1930s, right after .  Otto Frederick Rohwedder revolutionized the baking industry by inventing the first automatic commercial bread-slicing machine. His power-driven, multi-bladed prototype made its debut on July 7, 1928 , at the Chillicothe Baking Company in Missouri. Because buying pre-sliced loaves completely revolutionized convenience in kitchens, the phrase was quickly coined to highlight how impressive other new innovations were in comparison. How to Use It To praise something: "I just bought a new smartphone—it's the best thing since sliced bread, I can’t believe I worked without it! "Sarcasm: You can also use it to mock something that is being overly hyped, or for a compl...