velocity of progress
61Meghnad Saha — মেঘনাদ সাহা Meghnad Saha in Berlin Born 6 October 1893( …
62Shaped charge — Sectioned high explosive anti tank round with the inner shaped charge visible …
63NEAR Shoemaker — This article is about the robotic space probe named NEAR Shoemaker. For the type of asteroid, see Near Earth asteroid. For the public alarm system tested by the U.S. government in the 1950s and 1960s, see National Emergency Alarm Repeater. Artist …
64Flow measurement — is the quantification of bulk fluid movement. Flow can be measured in a variety of ways. Positive displacement flow meters acumulate a fixed volume of fluid and then count the number of times the volume is filled to measure flow. Other flow… …
65Mars Reconnaissance Orbiter — Conceptual image depicting the Mars Reconnaissance Orbiter in an elliptical low planet orbit around Mars Operator NASA / JPL Major contractors Lockheed Ma …
66Strategies for Engineered Negligible Senescence — (SENS) is the name Aubrey de Grey gives to his proposal to research regenerative medical procedures to periodically repair all the age related damage in the human body, thereby maintaining a youthful state indefinitely.[1][2] The term first… …
67nuclear weapon — an explosive device whose destructive potential derives from the release of energy that accompanies the splitting or combining of atomic nuclei. [1945 50] * * * or atomic weapon or thermonuclear weapon Bomb or other warhead that derives its force …
68human development — ▪ biology Introduction the process of growth and change that takes place between birth and maturity. Human growth is far from being a simple and uniform process of becoming taller or larger. As a child (child development) gets bigger,… …
69Fusion power — The Sun is a natural fusion reactor. Fusion power is the power generated by nuclear fusion processes. In fusion reactions two light atomic nuclei fuse together to form a heavier nucleus (in contrast with fission power). In doing so they release a …
70Aviation history — deals with the development of mechanical flight, from the earliest attempts in kite powered and gliding flight, to powered heavier than air flight, and beyond. Humanity s desire to fly possibly first found expression in China, where people flying …
