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As winter closes in and the weather starts to turn, it’s easy to begin dreaming of spring when the sun returns and your outdoor adventures can continue. Well here at Wired for Adventure, we happen to think differently! Because during the upcoming winter months, the UK actually becomes a heavenly concoction of long shadows, dew-kissed landscapes, and snow-capped peaks. Perfect for a winter walk.

With all this (and more) to explore, winter is quite simply one of the best times of year to head outside. But there’s a problem, and a quintessentially British one at that: the weather. Winter means lower temperatures, less daylight, and a higher chance of rainfall.

And with that rain comes damp ground, muddy trails, and the potential to ruin your day if you get caught out with the wrong walking gear. So to give you the best possible walking experience this winter, we’ve got together with DexShell, a UK leader in wet weather walking gear, to ensure that you’re kitted out with the very best in winter accessories.

Get started by picking one of our 6 best UK winter walks below. All you then need to do is make sure you’ve got the right gear and you’re ready to head out on a new wintery trail.

RHoodCove 1
Photo: George Hodan

Robin Hood’s Bay, North Yorkshire (England) 

Windproof gear is an absolute must on this walk around cottages, courtyards, and the North York Moors. Or head down to the bay itself, where you can follow trails taken by smugglers and learn all about contraband that was cleverly snuck onto dry land in villagers’ cellars.

And when you’re done, pop into the pub for a well-deserved drink by the fire! You might even hear a sea shanty or two…

Holkham, Norfolk (England)

Along the North Norfolk coast at Holkham, salt marshes press up against mudflats and sand to provide the most picturesque of winter coastal walks. Spend hours taking in the scenery, looking for rare species of flora and fauna, and searching the skies for a wide variety of seabirds.

There’s even the chance to head out on the water and see Holkham’s famous seals, capping off the perfect family day out. Winter hats are very much recommended.

Holkham
Photo: Andrea’s Photography

Three Cliffs Bay, Swansea (Wales)

Take in Swansea’s stunning coastline and marvel at the majesty of the dunes between Tor, Oxwich, and Pobbles Bay. And if you’re lucky enough for the sun to come out, you’ll probably enjoy one of the best sunsets anywhere in the UK this winter.

Quite frankly, you’ll be glad of a warm pair of socks on a walk like this. Wet terrain comes with the territory when there’s water crossings and sand dunes to traverse at this time of year.

South Loch Ness Trail, Loch Ness (Scotland)

A winter walk with a chance to see Nessie – who could ask for more. The South Loch Ness Trail provides stunning panoramas of both myth and legend. The full trail is over 26 miles, so why not make a winter weekend of it… It’ll give you a far higher chance of glimpsing that elusive monster!

LochNess
Photo: Sarah McGuire

Lickey Hills Country Park, Lickey (England)

Living in the city shouldn’t deter you from getting out and about this winter. Just 10 miles south-west of Birmingham, you’ll

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Frontier Adventure

The Solar Radius Might Be Slightly Smaller Than We Thought

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Two astronomers use a pioneering method to suggest that the size of our Sun and the solar radius may be due revision.

Our host star is full of surprises. Studying our Sun is the most essential facet of modern astronomy: not only does Sol provide us with the only example of a star we can study up close, but the energy it provides fuels life on Earth, and the space weather it produces impacts our modern technological civilization.

Now, a new study, titled The Acoustic Size of the Sun suggests that a key parameter in modern astronomy and heliophysics—the diameter of the Sun—may need a slight tweak.

The study out of the University of Tokyo and the Institute of Astronomy at Cambridge was done looking at data from the joint NASA/ESA Solar Heliospheric Observatory (SOHO’s) Michelson Doppler Imager (MDI) imager. The method probes the solar interior via acoustics and a cutting edge field of solar physics known as helioseismology.

Interior of the Sun
A cutaway diagram of the Sun. NASA/ESA/SOHO

‘Hearing’ the Solar Interior

How can you ‘hear’ acoustic waves on the Sun? In 1962, astronomers discovered that patches on the surface of the Sun oscillate, or bubble up and down, like water boiling on a stove top. These create waves that ripple in periodic 5-minute oscillations across the roiling surface of the Sun.

SOHO SDO
A view of the Sun, courtesy of SOHO’s MDI instrument. Credit: NASA

What’s more, astronomers can use what we see happening on the surface of the Sun to model the solar interior, much like terrestrial astronomers use seismic waves traveling through the Earth to model its core. Thanks to helioseismology, we can even ‘see’ what’s going on on the solar farside, and alert observers of massive sunspots before they rotate into view.

Solar Ffarside
Solar farside modeling using helioseismology. Credit: NSF/GONG

The study looked at p-mode waves as they traversed the solar interior. Previous studies relied on less accurate f-mode waves, which are surface waves considerably shorter than the solar radius.

The study defines the solar radius (half the diameter) as 695,780 kilometers… only slightly smaller than the generally accepted radius of 696,000 kilometers obtained by direct optical measurement. This is only smaller by a few hundredths of a percent, or 100-200 kilometers.

SOHO
An artist’s conception of SOHO in space. Credit: ESA/SOHO

The solar radius is a deceptively simple but crucial factor in astronomy. The Sun is a glowing ball of hydrogen and helium plasma without a distinct surface boundary. The photosphere—the glowing visible layer we see shining down on us on a sunny day—is what we generally refer to as the surface of the Sun.

The Solar Radius: A Brief
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If Warp Drives are Impossible, Maybe Faster Than Light Communication is Still on the Table?

350px Alcubierre

I’m sure many readers of Universe Today are like me, fans of the science fiction genre. From the light sabres of Star Wars to the neuralyzer of Men in Black, science fiction has crazy inventions aplenty and once science fiction writers dream it, scientists and engineers try and create it. Perhaps the holy grail of science fiction creations is the warp drive from Star Trek and it is fair to say that many have tried to work out if it is even possible to travel faster than the speed of light. To date, alas, to no avail but if the warp drive eludes us, what about faster than light communication! 

Let’s start with the warp drive.  The concept is a drive that can propel a spacecraft at speeds in excess of the speed of light. According to the Star Trek writers, the speed was described in factors of warp speed where they are converted to multiples of the speed of light by multiplication with the cubic function of the warp factor itself! Got it! Don’t worry, it’s not crucial to this article. Essentially ‘warp 1’ is equivalent to the speed of light, ‘warp 2’ is eight times speed of light and ‘warp 3’ is 27 times the speed of light and so it goes on! Therein lies the problem; achieving faster than light travel. 

In attempts to try to understand this, numerous experiments have been undertaken, of note Bill Bertozzi at MIT accelerated electrons and observed them becoming heavier and heavier until they couldn’t be accelerated any more! Once at the speed of light, it takes an infinite amount of energy to accelerate an object further! The maximum speed he achieved was the speed of light. In other experiments, synchronised atomic clocks were taken on board airliners and found that, after travelling at high speed relative to a reference clock on Earth, time had run slower! The upshot is that the faster you go, the slower time passes and at the speed of light, time stops! If time stops, so does speed! hmmmm this is tricky. 

The science of faster than light travel aside, In a number of potential warp drive designs have surfaced like the Alcubierre Drive proposed in 1994. However, the common factor to provide the faster than light travel is something called negative energy which is required in copious amounts. The study of quantum mechanics shows that even empty space has energy and anything that has less energy than empty space has ‘negative energy’.  The problem (among many) is that no-one knows how to get negative energy in huge amounts to power the warp drives.

Two-dimensional visualization of an Alcubierre drive, showing the opposing regions of expanding and contracting spacetime that displace the central region (Credit : AllenMcC)
Two-dimensional visualization of an Alcubierre drive, showing the opposing regions of expanding and contracting spacetime that displace the central region (Credit : AllenMcC)

It seems the warp drive is some time away yet but what about faster than light communication, could that work? Accelerating macroscopic objects, like spacecraft requires high amounts of negative energy but communication, as a recent paper explains, which operates at much smaller scale requires less energy. Quite a bit less in fact, less than is contained inside a lightning bolt.  Perhaps more tantalising is that we may just be able to create small amounts of negative energy using today’s technology.

One of the ways this can be achieved is to ensure the proper configuration and distribution of negative energy to channel communication.  The paper proposes a tubular distribution of negative energy in so called hypertubes to enable the acceleration and deceleration of warp bubbles for superluminal communication.  Achieving this for long distance communication will require special devices to be designed and built but as the papers author Lorenzo Pieri concludes “it is tantalising to consider the fabrication of microchips capable of superluminal computing”.  Yes, that is an exciting proposition but the thought of firing messages out to the cosmos at speeds faster than that of light.. Just wow!

Source : Hyperwave: Hyper-Fast Communication within General Relativity

The post If Warp Drives are Impossible, Maybe Faster Than Light Communication is Still on the Table? appeared first on Universe Today.

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Reader Appreciation Sale: Join The Big Outside for 30% Off

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Dear reader,

I love the holidays, partly because I make a point of spending a lot of time outside with family and friends. But it’s also a time when I reflect on how much I enjoy my lifestyle—and how much I appreciate readers like you who follow and support my blog. To show my appreciation, I have a special gift for you.

Right now, I’m offering you 30% off the cost of a one-year subscription to The Big Outside.

That means you get full access to all stories at my blog—including my many stories about the trips I’ve taken, with my expert tips on planning them—for $41.97 instead of the usual cost of $59.95 for a full year, or just $3.50 a month.

That’s the biggest discount I offer on a subscription all year—just in time to start researching your trips for next year. Don’t miss out!

Go to my Join page now and click on the Subscribe button under the Annual subscription option (Best Value: $4.99/Month). Enter discount code TBO30 and the price will reset to $41.97. Then just fill out the form and complete the purchase. The 30% discount applies only to a one-year subscription. You also get one free or deeply discounted e-guide, a $12.95 value; I’ll personally email you the discount code for that after you subscribe.

Go to my Join page now and subscribe for a year for just $3.50 a month!

Tet19 047 Me on Teton Crest Trail copy cropped 19 jpg
Hi, I’m Michael Lanza, creator of The Big Outside. Click here to sign up for my FREE email newsletter. Join The Big Outside to get full access to all of my blog’s stories. Click here for my e-guides to classic backpacking trips. Click here to learn how I can help you plan your next trip.

Michael Lanza of The Big Outside above Macon Lake and Washakie Lake on the Washakie Pass Trail in the Wind River Range, Wyoming.
” data-image-caption=”Me above Macon Lake and Washakie Lake on the Washakie Pass Trail in the Wind River Range, Wyoming; and in Death Hollow in southern Utah (lead photo, above).
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