Posted on April 27, 2022 (Updated on July 23, 2025)
What is meant by scalar product of two vectors?
Space & NavigationDecoding the Dot Product: A Friendly Guide to Vector Multiplication Vectors: they’re not just arrows in your physics textbook! They’re fundamental building blocks in math and science, representing things with both size and direction. You can add them, subtract them, but what about multiplying them? That’s where things get interesting, because there are actually two
Posted on April 27, 2022 (Updated on July 23, 2025)
What is the working distance of an objective How does it change with increasing magnification?
Space & NavigationDecoding Microscope Objectives: What’s the Deal with Working Distance? Ever peered through a microscope and wondered just how close you could get the lens to your sample? That, in a nutshell, is all about working distance. It’s a key spec on any objective lens, and understanding it can seriously up your microscopy game. Trust me,
Posted on April 27, 2022 (Updated on July 23, 2025)
How do you prove the sum of the angles in a quadrilateral 360?
Space & NavigationCracking the Code: Why a Four-Sided Shape Always Adds Up to 360 Degrees Geometry, right? It can sound intimidating, but honestly, a lot of it is just about seeing the hidden logic in shapes. Take quadrilaterals, those four-sided figures we see all the time. Ever wonder about the angles inside? Here’s a cool fact: no
Posted on April 27, 2022 (Updated on July 23, 2025)
What are undefined terms?
Space & NavigationUndefined Terms: The Secret Sauce of Geometry Ever wonder how geometry, with all its precise rules and shapes, actually starts? It might surprise you to learn that it all begins with a few things we just… accept. We call them “undefined terms,” and they’re way more important than they sound. Why Can’t We Define Everything?
Posted on April 27, 2022 (Updated on July 9, 2025)
What is the oldest sundial?
Space & NavigationThe oldest known sundial was made in Egypt in 1500 BC. It was L-shaped. The top of its vertical leg cast its shadow on the horizontal leg. How old is the oldest sundial? about 1,500 years BC The oldest known sundial was found in Egypt and dates from the time of Thutmose III, about 1,500
Posted on April 27, 2022 (Updated on July 23, 2025)
Can you divide arum lilies?
Space & NavigationDividing Arum Lilies: Sharing the Beauty (and Multiplying Your Plants!) Arum lilies – or calla lilies, if you prefer (Zantedeschia spp.) – are just stunning, aren’t they? Those elegant, often pure white, blooms and the lush green leaves… they bring a touch of class to any garden or even a simple container on a balcony.