Mammoth Cave is now officially longer than 400 miles.
This official announcement is a bit old, as the survey work that brought Mammoth over 400 miles was probably done during the October or December 2012 expeditions.
Update: I contacted some of my caving friends who survey in Mammoth regularly, and they have confirmed that the survey reached 400 miles during the October 2012 expedition.
Does this make you feel safer? “All you need to know to get on a plane these days is the color of your house.”
I realize that this is actually an example of the TSA trying to be helpful to a U.S. citizen, but it also illustrates the complete uselessness of all TSA airport security.
“I shall never surrender or retreat.” William Travis’ letter of defiance returns to the Alamo.
An evening pause:
Pushback: The number of gun companies who have decided to stop selling to anti-second amendment state governments has grown to 44.
None of the companies listed include any of the big gun or ammo manufacturers, but give it time. The government is sometimes their biggest customer, so to sacrifice that income requires a level of commitment they might not yet be ready to make. Nonetheless, I expect it is only a matter of time before some of the heavy players join this effort, if only to apply pressure to state governments. And when a few do, all will feel pressure to join in.
A jetpack that takes off like a plane.
With a name right out of Thunderbirds, Skyflash is, if nothing else, ambitious. The wing, which is worn like a backpack, is designed to take off from the ground and, if successful, will be the smallest twin engined plane ever built.
The competition heats up: The Antares hot fire test of the rocket’s first stage was successfully completed tonight.
The 29-second hot fire test took place at 6:00 p.m. (EST) on February 22, 2013 at the Mid-Atlantic Regional Spaceport’s (MARS) Pad 0A, which was designed and built over the last several years to accommodate liquid-fuel space launch vehicles. The primary goals of the test were to ensure that the launch complex’s fueling systems and the Antares stage one test article functioned properly in a fully operational environment, that engine ignition and shut down commands operated as designed, and that the dual AJ26 first stage engines and their control systems performed to specifications in the twin-engine configuration. The test included a full propellant loading sequence, launch countdown and engine ignition operation. The pad’s high-volume water deluge system flowed throughout the entire period of the test to protect the pad from damage and for noise suppression.
The first stage will now be prepped for a full scale test launch of Antares, expected in about six weeks. If that is successful, Orbital Sciences will then follow with a flight of the Cygnus capsule to ISS.
An evening pause: In honor of George Washington’s birthday, here is his farewell speech, in which he outlined his advice for the citizens of this country to sustain a free America into a long and prosperous future.
The wisdom of these words is astonishing. More so is their predictive quality. Washington knew, possibly better than anyone, the greatest risks that threatened liberty. Woe to us all if we choose to ignore his warnings.
We are doomed: A new poll finds that the public opposes cuts to virtually all types of spending.
We can make believe we can keep spending as we have, but reality always wins.
The Falcon 9 static fire test is now set for Monday.
I’m not sure if this is a reschedule, or the information I posted from previous stories was incorrect. Either way, this test is their standard preparation for Falcon 9’s next launch.
Finding out what’s in it: Because of the cost of Obamacare, employers are dropping healthcare coverage for spouses.
By denying coverage to spouses, employers not only save the annual premiums, but also the new fees that went into effect as part of the Affordable Care Act. This year, companies have to pay $1 or $2 “per life” covered on their plans, a sum that jumps to $65 in 2014. And health law guidelines proposed recently mandate coverage of employees’ dependent children (up to age 26), but husbands and wives are optional.
Chicken Little report: The head of the Transportation Department today threatened long delays if the sequestration cuts take place March 1.
Either he is lying or he has decided to make the most harmful cuts to hurt the public the most. Sequestration will lower the budget of the FAA by 8.2 percent, which will cut that agency’s budget from $18.7 to $17.2 billion, which is still more than the FAA got in 2009, by $300 million. I don’t remember long delays and limited airport operations at that time, do you? See here for my sources.
There is no reason to shut down operations or cause significant travel delays, unless LaHood wants to cause pain so that the money flow keeps pouring in.
Update: One more comment. It took me all of five minutes of research to come up with the past budgets of the FAA to give the sequestration cuts some context. I think it disgraceful that the reporter for this story couldn’t do the same.
The competition heats up: An update on Boeing’s CST-100 capsule.
The day of reckoning looms: A new U.N. report states that Iran has moved another step closer to building its own nuclear weapon.
R.I.P. Dr. David S. McKay: 1936-2013. More here.
Though he was most famous for being the lead author of the 1996 paper suggesting that fossil life had found in a Martian meteorite, McKay was one of the giants of planetary science whose work was far more extensive and important. He will be missed.
New data has allowed scientists to lower the chance that the asteroid Apophis will hit the Earth in a future orbit.
Recent observations from Pan-STARRS PS1 telescope at Haleakala, Hawaii have reduced the current orbital uncertainty by a factor of 5, and radar observations in early 2013 from Goldstone and Arecibo will further improve the knowledge of Apophis’ current position. However, the current knowledge is now precise enough that the uncertainty in predicting the position in 2029 is completely dominated by the so-called Yarkovsky effect, a subtle nongravitational perturbation due to thermal re-radiation of solar energy absorbed by the asteroid. The Yarkovsky effect depends on the asteroid’s size, mass, thermal properties, and critically on the orientation of the asteroid’s spin axis, which is currently unknown. This means that predictions for the 2029 Earth encounter will not improve significantly until these physical and spin characteristics are better determined.
The new report, which does not make use of the 2013 radar measurements, identifies over a dozen keyholes that fall within the range of possible 2029 encounter distances. Notably, the potential impact in 2036 that had previously held the highest probability has been effectively ruled out since its probability has fallen to well below one chance in one million. Indeed only one of the potential impacts has a probability of impact greater than 1-in-a-million; there is a 2-meter wide keyhole that leads to an impact in 2068, with impact odds of about 2.3 in a million.
The second paragraph basically says that the keyholes that might bring Apophis back to Earth are very small, making it unlikely that the asteroid will fly through any one of them in 2029. The first paragraph however notes that it will be impossible to chart the asteroid’s course accurately enough to rule out this possibility until we have more data on the asteroid itself.
Consensus! In an interview in Australia, the head of the IPCC has admitted that the climate has stopped warming now for the past seventeen years.
No computer climate model offered in any IPCC report predicted this long pause in warming. They all instead insisted that because of the increase of carbon dioxide in the atmosphere, the global temperature would have to rise, and do so quickly and with catastrophic results.
In other words, those models were wrong. The climate is very complicated, and we don’t yet understand very well how it functions.
An evening pause:
How to see Comet PANSTARRS, expected to be visible to the naked eye in the evening sky in March.
