treadle pump

A treadle pump is a human-powered suction pump that sits on top of a well and is used for irrigation.[1] It is designed to lift water from a depth of seven metres or less. The pumping is activated by stepping up and down on a treadle, which are levers, which drive pistons, creating cylinder suction […]

Treadle_pump_GB_drawing

A treadle pump is a human-powered suction pump that sits on top of a well and is used for irrigation.[1] It is designed to lift water from a depth of seven metres or less. The pumping is activated by stepping up and down on a treadle, which are levers, which drive pistons, creating cylinder suction that draws groundwater to the surface.

Kyoto Protocol

The Kyoto Protocol is an international agreement linked to the United Nations Framework Convention on Climate Change, which commits its Parties by setting internationally binding emission reduction targets. Recognizing that developed countries are principally responsible for the current high levels of GHG emissions in the atmosphere as a result of more than 150 years of […]

The Kyoto Protocol is an international agreement linked to the United Nations Framework Convention on Climate Change, which commits its Parties by setting internationally binding emission reduction targets.

Recognizing that developed countries are principally responsible for the current high levels of GHG emissions in the atmosphere as a result of more than 150 years of industrial activity, the Protocol places a heavier burden on developed nations under the principle of “common but differentiated responsibilities.”

The Kyoto Protocol was adopted in Kyoto, Japan, on 11 December 1997 and entered into force on 16 February 2005. The detailed rules for the implementation of the Protocol were adopted at COP 7 in Marrakesh, Morocco, in 2001, and are referred to as the “Marrakesh Accords.” Its first commitment period started in 2008 and ended in 2012.

Hardy Cross Method

Published on Sep 25, 2013
This video provides you with an overview of using the Moment Distribution Method (or Hardy Cross Method) to analyze statically indeterminate beam structures.

Published on Sep 25, 2013
This video provides you with an overview of using the Moment Distribution Method (or Hardy Cross Method) to analyze statically indeterminate beam structures.

open data

Sean Hargrave Friday 20 November 2015 10.03 GMT At the end of the month, world governments will convene at the UN COP21 conference in Paris for the next round of binding emission commitments aimed at restricting global warming to no more than two degrees by the end of the century. When it comes to agreeing potentially […]

At the end of the month, world governments will convene at the UN COP21 conference in Paris for the next round of binding emission commitments aimed at restricting global warming to no more than two degrees by the end of the century.

When it comes to agreeing potentially tougher targets, both policymakers and members of the public will now be armed with the COP21 climate change calculator, developed by the Climate-KIC, the EU’s main climate innovation research centre, in collaboration with Imperial College, London and FT.com.

Using data on the emission reduction pledges made to date and scientific forecasts on future warming, it aims to inform the public and policymakers on the impact a variety of choices by individual countries would have on overall global warming.

Deep learning

Deep learning (deep machine learning, or deep structured learning, or hierarchical learning, or sometimes DL) is a branch ofmachine learning based on a set of algorithms that attempt to model high-level abstractions in data by using multiple processing layers with complex structures or otherwise, composed of multiple non-linear transformations.[1][2][3][4][5] Deep learning is part of a […]

Deep learning (deep machine learning, or deep structured learning, or hierarchical learning, or sometimes DL) is a branch ofmachine learning based on a set of algorithms that attempt to model high-level abstractions in data by using multiple processing layers with complex structures or otherwise, composed of multiple non-linear transformations.[1][2][3][4][5]

Deep learning is part of a broader family of machine learning methods based on learning representations of data. An observation (e.g., an image) can be represented in many ways such as a vector of intensity values per pixel, or in a more abstract way as a set of edges, regions of particular shape, etc.. Some representations make it easier to learn tasks (e.g., face recognition or facial expression recognition[6]) from examples. One of the promises of deep learning is replacing handcrafted features with efficient algorithms for unsupervised or semi-supervised feature learning and hierarchical feature extraction.[7]

Research in this area attempts to make better representations and create models to learn these representations from large-scale unlabeled data. Some of the representations are inspired by advances in neuroscience and are loosely based on interpretation of information processing and communication patterns in a nervous system, such as neural coding which attempts to define a relationship between various stimuli and associated neuronal responses in the brain.[8]

Various deep learning architectures such as deep neural networks, convolutional deep neural networks, deep belief networks andrecurrent neural networks have been applied to fields like computer vision, automatic speech recognition, natural language processing, audio recognition and bioinformatics where they have been shown to produce state-of-the-art results on various tasks.

Alternatively, deep learning has been characterized as a buzzword, or a rebranding of neural networks.[9][10]

stop harassing climate scientists

Representative Lamar Smith is using his bully pulpit as head of the House Committee on Science, Space & Technology to subpoena National Oceanic and Atmospheric Administration (NOAA) climate scientists’ emails, peer review comments, and other private information. He’s upset with a paper NOAA scientists published in Science refuting claims of a global warming slowdown, so […]

Representative Lamar Smith is using his bully pulpit as head of the House Committee on Science, Space & Technology to subpoena National Oceanic and Atmospheric Administration (NOAA) climate scientists’ emails, peer review comments, and other private information. He’s upset with a paper NOAA scientists published in Science refuting claims of a global warming slowdown, so he’s smearing the scientists who wrote it.

Sign our letter urging Chairman Smith to withdraw the subpoena and stop harassing climate scientists.

NOAA scientists met several times with committee staff to explain the research. But Chairman Smith continues to manufacture a controversy by insisting that NOAA turn over the scientists’ correspondence—and now, deposing NOAA employees.

We need to make sure the public knows that these actions can create a chilling effect on research and make NOAA scientists less effective. This affects all experts who work and correspond with federal scientists. The American Meteorological Society said it best in a letter to Chairman Smith: “The advancement of science depends on investigators having the freedom to carry out research objectively and without the fear of threats or intimidation whether or not their results are expedient or popular.”

This abuse of power has to stop. Sign our letter today.

Sincerely,
MichaelHalpern_jpg
Michael Halpern
Manager of Strategy and Innovation
Center for Science and Democracy
Union of Concerned Scientists

flying objects

Uploaded on Sep 22, 2008 The AirTraffic team presents the global air traffic (simulation over 24 hours). http://radar.zhaw.ch/ Uploaded on Feb 19, 2010 Courtesy NASA FACET is a simulation tool for exploring advanced air traffic management concepts. An efficient and effective air traffic management system is vital to the U.S. transportation infrastructure. Since 1978, when […]

Uploaded on Sep 22, 2008

The AirTraffic team presents the global air traffic (simulation over 24 hours).
http://radar.zhaw.ch/


Uploaded on Feb 19, 2010

Courtesy NASA

FACET is a simulation tool for exploring advanced air traffic management concepts.
An efficient and effective air traffic management system is vital to the U.S. transportation infrastructure. Since 1978, when the airline industry was deregulated, the inflation adjusted gross domestic product (GDP) has increased by 62 percent. In this same time period, total output of scheduled passenger air transportation (as measured by Revenue Passenger Miles) has increased by 190 percent and total airfreight ton miles have increased by 289 percent. Since 1997, flight delays have skyrocketed – doubling in only four years. These trends are expected to continue. In 1998, airline delays in the U.S. cost industry and passengers $4.5 billion — the equivalent of a 7 percent tax on every dollar collected by all the domestic airlines combined.


Uploaded on Oct 26, 2010

Simulation of Space Debris orbiting Earth. Created by the Institute of Aerospace Systems of the Technische Universität Braunschweig and shown at the 3rd Braunschweig Lichtparcours from June 19th to September 30th, 2010. Also available as an interactive screen saver for windows and Linux athttp://www.days-in-space.de.
More information about our research at http://www.space-debris.de.
Color Key:
Red: Satellites (operational or defunct)
Yellow: Rocket bodies
Green: Mission Related Objects (bolts, lens caps, etc.)
Blue: Solid rocket motor slag
White: Fragments from explosion events

seven red lines

Published on May 5, 2014 How to draw seven red lines, all perpendicular, some with green ink, some with transparent ink, and one in the form of a kitten. This is a caricature but experienced engineers do not behave like this. Users NEVER know with precision what they want and it is the job of […]

Published on May 5, 2014
How to draw seven red lines, all perpendicular, some with green ink, some with transparent ink, and one in the form of a kitten.

This is a caricature but experienced engineers do not behave like this. Users NEVER know with precision what they want and it is the job of the engineer put these wants into appropriate specs. When they say red the engineer must extract the Pantone scale range they want. Transparent does not mean invisible and the engineer must define the degree of transparency. Lines here clearly not straight lines and perpendicular means something different from the mathematical definition.