SANTA CLARA — Fortifying the offensive line became an obvious emphasis since the 49ers made Jimmy Garoppolo a very rich quarterback last year.Now it’s up to that entire returning cast of linemen to prove they belong to stay in their roles.Center Weston Richburg’s recovery from leg surgery will keep him out of action until training camp, so perhaps the 49ers’ biggest question on the offensive line is who can fill in for Richburg.Although Mike Person started every game at right guard last …
Observations cause a major upset in planet formation theory, and the time needed for evolution.Two days ago, we reported the evidence for youth in Saturn’s rings and moons (19 Dec 2018). A new report from Science Magazine extends this youth out to the planets around other stars. Daniel Clery, in his article “Hints of young planets puzzle theorists,” gives observational evidence that the long-standing “core accretion” model for planet formation is wrong. At least 20 exoplanets have dust disks that can’t be as old as expected. Keep in mind that planetary scientists still make ‘reckless drafts on the bank of time’ (2 July 2007) as do the geologists, tossing around millions and billions of years like politicians with OPM (other people’s money). In this quote, Clery sounds like a politician realizing there’s not enough revenue for his favorite program.HL Tau, a mere stripling of a star no more than 1 million years old, was swaddled in a surprise. Four years ago, the Atacama Large Millimeter/submillimeter Array (ALMA) in Chile revealed gaps in a bright disk of dust around HL Tau—apparently swept clean by unseen planets that had formed millions of years earlier than astronomers thought possible. But now, an ALMA survey of 20 disks around nearby young stars suggests the precocious planets around HL Tau are no anomalies—a result that will keep theorists busy for years.There aren’t enough cloths to swaddle the baby. How big a surprise is this? Clery quotes an astronomer:“It’s spectacular,” says Joshua Winn of Princeton University. “We will never think about disks in the same way.”The findings appear to falsify the favored core accretion theory. “The process is expected to be slow, taking millions of years to play out.” These exoplanets are too young for that. Many of the cleared lanes are farther out than Neptune is from the sun, Clery says, adding to the problem, because there should be a paucity of dust at those distances.Planetary Science: the myth that dust bunnies turn into real bunnies, given billions of years.The evidence takes away support for core accretion theory and hands it to the “heretical” theory called disk instability. How fast is that process?An alternative model relying on unstable ripples or clumps in the disk that collapse under their own gravity can make planets faster, especially large ones in distant orbits. But Marco Tazzari, of the Institute of Astronomy at the University of Cambridge in the United Kingdom, notes that the survey found few spiral arms—signs of disk instabilities—in the disks. “There are many structures we cannot account for,” he says.The astronomers only see the lanes cleared of dust, not any planets themselves. Their proposed solution? Futureware. “To untangle these issues, astronomers need additional observations,” Clery writes. At least they are looking now, instead of just modeling. Clery’s article illustrates the latest revision of Murphy’s Law: “Anything that can go wrong has already gone wrong.” Scientists are just finding it with the ALMA Telescope. It also illustrates H. L. Mencken’s conjecture, “For every complex problem there is an answer that is clear, simple, and wrong.”Both theories, therefore, don’t seem to work. And what about the rocky, inner planets? Disk instability is not as helpful in those cases.Ashes to Ashes and Dust to DustAt New Scientist, Leah Crane demoted our planet by saying, “Earth may be made up of rocks blasted by gusts of solar wind.” Don’t you feel better now? Our response should be, “If you say it MAY be, it also MAY NOT be. How do you know?” She sings the old Bob Dylan ballad, “The answer, my friend, is…’The solar wind consists of ions, not rocks.Earth may have started as dust in the wind. Unlike in many other stellar systems we’ve seen, the area close to our sun is empty. That may be because early in the solar system’s formation, the solar wind blew rocks near the sun into the area where Mercury, Venus, and Earth eventually formed.That’s odd; we know a lot about the solar wind, and our sun isn’t blowing chunks these days. For cover, Crane runs to Christopher Spalding at Yale University, who has a “simulation.” If you start with the right size pebbles, he says, and if the sun was more active in the past, and if Jupiter contributed its gravity – then rocks 100 meters and smaller “may have acted as building blocks for these rocky worlds.” They “may have,” he says, but he’s cheating. Getting dust to grow into pebbles by accretion is one of the big hurdles in planet formation theories (28 June 2018). At least the ALMA team had observations, not just simulations.Readers, please realize that secular astronomers believed the core accretion model for decades. And before that, textbooks routinely taught the planetesimal hypothesis. And centuries before that Laplace presented the nebular hypothesis, for which he famously told Napoleon it had no need of God. Well, now we have telescopes that fail to confirm it, and the recent “alternative hypothesis” of disk instability isn’t looking too good, either. Let’s put the findings together in a logical way. If exoplanets form quickly, then Saturn formed quickly. If Saturn’s rings and moons are young, then Saturn is young. If Saturn is young, the solar system is young. If the earth is young, then Charlie & Charlie* were wrong; life must have been created. Tell me, theistic evolutionists, why you feel so compelled to abandon Genesis and desire the company of people who keep turning out to be wrong? Don’t you believe Psalm 119:99? “I have more understanding than all my teachers, for Your testimonies are my meditation.”*Lyell, Darwin.Recommended resources: Michael Denton is neither a Christian nor a creationist, but his recent books The Wonder of Water (see the video), and Children of Light (hear his podcast) make a compelling case that our universe, our star, and our planet were intended for beings like us. Isaiah said as much long ago. “For thus says the Lord, Who created the heavens, Who is God, Who formed the earth and made it, Who has established it, Who did not create it in vain [i.e., by random forces or the Stuff Happens Law], Who formed it to be inhabited: “I am the Lord, and there is no other” (Isaiah 45:18).For your amusement, here are some Murphy’s Laws that seem appropriate to the story:If there is a possibility of several things going wrong, the one that will cause the most damage will be the one to go wrong.If you perceive that there are four possible ways in which something can go wrong, and circumvent these, then a fifth way, unprepared for, will promptly develop.If anything simply cannot go wrong, it will anyway.Whether things can go wrong or not, it depends on your frame of reference. Regardless of your frame of reference, things will go wrong anyway.Two wrongs don’t make a right. It usually takes three or four.If your action has a 50% possibility of being correct, you will be wrong 75% of the time.Anything that can’t possibly in a million years go wrong, will go wrong.The probability that something can go wrong is directly proportional to the square of the amount of inconvenience it can cause you.The only time something’s right is when everyone agrees its wrong. (Visited 594 times, 1 visits today)FacebookTwitterPinterestSave分享0
14 June 2011The government is looking to partner with the private sector to address the infrastructure backlog both in South Africa and on the continent, Public Enterprises Minister Malusi Gigaba told an investors’ conference in Cape Town on Monday.South African infrastructure investments as a percentage of gross domestic product (GDP) had fallen from 16% of GDP in the 1970s to four or five percent of GDP in recent years, Gigaba said.This would be turned around with state company Eskom and Transnet’s built infrastructure programmes, which kicked off in 2004, and the government infrastructure programme announced in 2005.Gigaba said it was important to leverage private-sector funding, pointing out that a number of suppliers to parastatals had large balance sheets and could perhaps help roll out more infrastructure.Companies in the mining, financial and industrial sectors, as well as the state’s development finance institutions, could play a key role in funding infrastructure projects, he said.At the same time, “we need to be clear … that such partnerships, of whatever nature, must have the aim that the state’s control of strategic assets should be retained.”Gigaba said key sectors of the economy were dependent on the availability of quality infrastructure, which could either constrain growth or increase productivity.South Africa can also begin to play an active role on the continent to partner with fellow African countries to develop their infrastructure, he said.New transport regulator to boost investmentTo help boost private investment in South Africa’s transport industry, the Department of Transport and the Treasury will be creating a single economic regulator within the next two years, Business Day reported on Tuesday.According to Business Day, the move is “recognition by the government that the segment is unattractive to the private sector”.Tranport Director-General George Mahlalela told the conference on Monday that South Africa’s “evolving tariff regime is reactive and does not allow for predictable tariff structures to influence the cost of doing business or guide investment regimes”.Mahlalela said the new regulator would provide certainty by overseeing the pricing of all transport infrastructure, including road, rail, maritime and aviation infrastructure.SAinfo reporter and BuaNews
Field recorders are an absolute must when going into any production. Let’s take a look at some of the best and most affordable options for videographers and filmmakers.Capturing quality audio is crucial to any film or video production. Luckily, there’s a vast array of options out there for field recorders, from small handhelds to larger multi-channel recorders.Most filmmakers won’t need to spend big money on upper echelon recorders like those from Sound Devices, Sonosax, Nagra, Roland or Fostex. These field recorders are usually left for production sound mixers working on bigger budget film productions. There are plenty of affordable options for filmmakers and videographers who don’t want to spend more than $1000 on a field recorder. Let’s take a look at a few of them.Handy Recorders1. Zoom H1 Handy Recorder – $99.99Pros: decent sound quality, compact form factorCons: battery life, build qualityThe Zoom H1 Handy Recorder is a compact digital audio recorder. It can fit in your back pocket and it’s perfect for the sound mixer/filmmaker on the go. Built specifically for documentarians, journalists, and podcasters, the small form factor captures professional high-quality WAV and MP3 files.2. Tascam DR-22WL – $101.99Pros: layout, recording abilityCons: build quality, weak wifi signalTascam’s DR-22WL Recorder features WiFi to enable connectivity to an iOS or Android device for monitoring and control. Through the use of WiFi, the recorder can stream playback. It can also transfer files to your external device or the web. It also features a built-in XLR input and is capable of recording up to 24-bit/96kHz quality audio.3. Zoom H5 Handy Recorder – $269.99Pros: ease of use, durability, quality audioCons: on-mic noise, lack of XLR locksThe compact H5 Handy digital recorder from Zoom is capable of recording up to four tracks of audio. It also showcases an interchangeable modular microphone setup. While it comes with its own microphone module, it’s compatible with the H6 line of modules as well.4. TASCAM DR-44WL – $249.99Pros: wifi connectivity, durabilityCons: internal stability, range of wifiThe Tascam DR-44WL is a decent upgrade from the previously mentioned DR-22WL. The built-in WiFi has the same functionality as the 22WL — but where it really shines is with the built-in stereo mic and dual XLR inputs. It also includes the ability to record four tracks of audio simultaneously.5. Roland R-26 – $399.00Pros: solid recording, versatile, ease of useCons: customer support, pre-amps, slight noiseThe Roland R-26 is a full six-channel digital field recorder. With its flexible and compact design, the R-26 is perfect for professional filmmakers who need a handy backup audio system. The recorder comes with a built-in omnidirectional mic, while also offering two XLR combo inputs. Its phantom power is a major plus, and the ease of use for the interface is a nice addition as well.6. Zoom H6 Handy Recorder – $399.99Pros: solid audio, compact, durableCons: slight noise, limited backup recordingZoom’s H6 Recorder is the current master of the handheld field recorder market. Used worldwide by award-winning documentary filmmakers, the H6 is a durable option for on-the-go recording. Its interface is extremely easy to use, its sound quality is high, and its ability to record up to four channels of audio simultaneously is a major plus.Portable Multi-Track Recorders1. Marantz PMD661 MKII – $600Pros: Quality Sound, Low DistortionCons: Long Term Durability, Build QualityThe Marantz PMD661 MKII is a lower budget full professional field recorder. While not as robust as some of the other choices, it’s multi-track capabilities and ease of use interface make it a quality recorder. As we stated its robustness should be questioned. The build quality isn’t what you would think it would be for $600, as such it may not last, so buyer be aware.2. Roland R-44-E – $795Pros: Versatile, Quality Power OutputCons: Form Factor, Does Not Save SettingsRoland’s R-44 field recorder is a quality field recorder for independent videographers and filmmakers. It’s form factor, while not the easiest to navigate weighs less than 3 lbs making the recorder extremely lightweight. It also can record up to 4 channels of clear of audio, all while operating long periods of time due to it efficient power output.3. Tascam DR-680MKII – $832Pros: Quality Audio, Build QualityCons: Phantom Power, Meter ReadoutsThe Tascam DR-680MKII multichannel field recorder allows for up 8 tracks to be recorded simultaneously, and at an amazing 96kHz/24-bit. This small recorder packs a serious punch and offers clear audio all within a sturdy form factor. It boast 4 XLR combo inputs with phantom power, however the phantom power can be one of the recorders faults along side the unclear meter read-outs.4. Superscope PSD450mk2 – $900Pros: Build Quality, Sound RecordingCons: Not User FriendlyThe PSD450mkII field recorder from Superscope is one of the manufactures best portable recorders to date. It’s build quality and recording capabilities are impressive, along side its internal memory storage through a built-in 16GB SSD. It’s settings are deep and robust, however it’s ease of use isn’t where it should be. Regardless of this it boasts a long list of features including a solid EQ and multiple effects inside it’s interface, once you learn to navigate it.5. Tascam HD-P2 – $1000Pros: Sound Quality, Low DistortionCons: Unused Functions, Storage LimitationsTascam’s HD-P2 is an incredibly lightweight 2-channel stereo field recorder. It’s sound quality and low distortion is a huge plus, however it’s use of Compact Flash and Microdrive storage is limited and can be a major drawback. It also boasts a wealth of functions and abilities, the only issue is that many of these functions tend to go unused. Regardless of it few drawbacks, the HD-P2 is an exceptional recorder that can capture audio at a professional level.6. Zoom F8 – $1000Pros: Sound Quality, Ease of Use, DurabilityCons: Sound MeteringThe Zoom F8 Multi-Track Field Recorder is the most robust and durable recorders on our list. With its ability to record up to 8 channels of audio through lockable analog XLR inputs not only puts it at the top of this list but also places it in serious contention with the bigger name recorders like Sound Devices. Perfect for independent filmmakers and videographers the F8 is a field recorder that will provide real professional quality results.Before you know it you’ll be hiring your own sound designer and field recordist and they’ll bring in the big boys, but until then any of these options based on your budget will get you up and rolling. If your budget is smaller than you can easily purchase one of the handy recorders that will work perfectly for simple film or video production. Then if you get to the point where you need to something more robust and adjustable then you can upgrade to one of the multi-track recorders.What field recorders to you like to use? Have you used any of the list recorders? Tell us about your experience in the comments below.
A day after the BJP sought security for its workers in the Valley, Governor Satya Pal Malik on Wednesday held a meeting in Srinagar and asked the security agencies “to give due consideration to the genuine apprehensions of political activists working at the grassroots level”. ‘Close watch’“There is a need to constantly maintain a close watch on the ground situation. Leaders of different political parties and other organisations may also raise their security concerns with the security headquarters of the J&K police. Due diligence of threat perception will be carried out by the intelligence agencies before any provision of personal security to persons with a perceived threat,” Mr. Malik said during the meeting. The meeting was attended by Adviser to Governor K. Vijay Kumar, Chief Secretary B.V.R. Subrahmanyam, Director General of Police Dilbag Singh, Additional Director General of Police Security Muneer Ahmed Khan and Inspector General of Police S.P. Pani. The Governor said he would invite leaders of different political parties to discuss their security concerns and ways to address them “to create a secure political and governance environment for one and all”.Inquiry orderedThe Governor also ordered an inquiry into all attacks that have taken place since October 2018 against political leaders or workers in Kashmir. A report would be filed within 15 days “with appropriate recommendations”, an official said. For elected sarpanches, municipal councillors, mayors and presidents, it was decided that they would be provided a secure room for their stay either at the State or the district level. The J&K administration had on February 20 decided to withdraw security to 18 Hurriyat leaders and 155 political persons and activists, including Shah Faesal, who resigned from the IAS, and Peoples Democratic Party leader Wahid Parray. It was followed by withdrawal of security to leaders of the National Conference and the PDP. Over 1,000 police personnel and over 100 vehicles were freed to do regular police work, the administration said. Alarm bellsHowever, the killing of BJP leader Gul Muhammad Mir, 60, in south Kashmir on May 4 outside his residence has set the alarm bells ringing. The BJP hit the streets in Srinagar on Tuesday to demand security for its workers in Kashmir.