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Free fall is any motion of a body where gravity is the only force acting upon it, at least initially. These conditions produce an inertial trajectory so long as gravity remains the only force. Since this definition does not specify velocity, it also applies to objects initially moving upward. Since free fall in the absence of forces other than gravity produces weightlessness or "zero-g," sometimes any condition of weightlessness due to inertial motion is referred to as free-fall. This may also apply to weightlessness produced because the body is far from a gravitating body.

gravity freefall research

A few years ago, the Communities and Local Government department looked into efforts to deal with people accused of ‘anti-social behaviour’ (hat-tip @chrisgurr)

The finished report looked into pioneering projects for families put at risk of losing their homes as a result of anti-social behaviour.

In strikingly similar parallels, the research noted that the biggest complaints were around ‘youth nuisance’. Would such penalties change their behaviour, it was asked.

The answer was a resounding no.

research benefits riots

pub research

Gene therapy is the insertion, alteration, or removal of genes within an individual's cells and biological tissues to treat disease. It is a technique for correcting defective genes that are responsible for disease development[1]. The most common form of gene therapy involves the insertion of functional genes into an unspecified genomic location in order to replace a mutated gene, but other forms involve directly correcting the mutation or modifying normal gene that enables a viral infection. Although the technology is still in its infancy, it has been used with some success.

gene genetics research

Signals from GPS satellites now help you to call your mother, power your home, and even land your plane – but a cheap plastic box can jam it all

gps research

research weapons

Today we’ll be showing how to pick your way out of Handcuffs using only a bobby pin.

handcuffs lockpicking research

Every one of us owes a debt to Julian Assange. Thanks to him, we now know that our governments are pursuing policies that place you and your family in considerably greater danger. It's only because of his leaks that we know the US government has secretly

research wikileaks assange

The uniform numbers in American football are unusual compared to those in any other sport. They are displayed in more locations on the uniform than in those of other sports (on both the front and back of the jersey, on both shoulders, and often on the hel

research sport

The traits that once made such Renaissance men appear old-fashioned—their scholarly followings, their steady price levels—have now become strong selling points. Although the recession hurt every art category last year, Old Master values at auction only fe

art research

Since 2006, 20 to 40 percent of the bee colonies in the United States alone have suffered “colony collapse.” Suspected culprits ranged from pesticides to genetically modified food.

Now, a unique partnership — of military scientists and entomologists — ap

bees research biology

The fallen soldier's memorial at Flat Top Park in West Richland, Wash. The plaque at lower right says:

THE FINAL TRIBUTE

The fallen soldier's temporary grave marker was the inverted rifle placed in the ground by its bayonet with the helmet, boots and do

grave research

Cross erected by French civilians w. note reading: MORT POUR LA FRANCE (Died for France), in front of soldier's military grave marker of rifle topped by his helmet; in memory of American soldier who died during crusade to liberate France from Nazis.

grave research

A rifle pointing downwards into the ground is a memorial of a soldier killed in action. Often the rifle is capped by a helmet and perhaps dog tags, and at the bottom, a pair of boots to represent the final march of the last battle - items the soldier has

burial research

A potter's field is a place for the burial of unknown or indigent people.

writing research

Scientists say they've carried out the first rigorous analysis of dance moves that make men attractive to women.

The researchers say that movements associated with good dancing may be indicative of good health and reproductive potential.

"When you go ou

dancing health men attraction research

A Ministry of Defence scientist died following a blast during top secret explosives tests which were inappropriately planned and appeared to be inadequately organised, an inquest jury ruled today.

Jurors made a number of criticisms of the trial in which

research

Darris White is a deep thinker.

The engineer at Embry-Riddle Aeronautical University in the US is currently finalising designs for a series of turbines that could be used to harness the immense energy of the Gulf Stream, flowing deep in the Atlantic Ocea

energy environment research

A writer's guide to diseases and injuries, and how to use them effectively in fiction

writing reference medical research

This directory of para-states is not a list of terrorist organizations, and is not constructed to supplement or complement the list of terrorist organizations of the US Department of State. The guide intentionally casts a wide net, and includes both the n

reference research politics