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M. Cann (Berkshire)
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Great Caves of the World: 1
Great Caves of the World: 1
by Tony Waltham
Edition: Hardcover
Price: £14.99

3 of 3 people found the following review helpful
5.0 out of 5 stars Perfect for anyone with an interest in interesting things, 17 Feb. 2014
Verified Purchase(What is this?)
This book is a perfect introduction to the diversity of caves around the world. I bought a copy as a present for a 7 year old who loves the amazing diversity of pretty much everything natural-history, and it's a hit (with both of us): Each cave is described over a page or so of text and (very important!) has one or more pictures of the cave. The caves described range in size, type, country, history and reason-of-interest.

Oh, and the book includes Gaping Gill - so if you live near Yorkshire, England and you'd like to do some cave-bagging (not sure if that's a recognized term) then get yourself along to a Gaping Gill wynch-meet and get started. Then plan your holidays for the next decade around the rest of them...?


Mirrycle Mountain Bike Bar End Mirror - Black
Mirrycle Mountain Bike Bar End Mirror - Black
Price: £14.93

5.0 out of 5 stars Best mirror I have ever used..., 17 Feb. 2014
Verified Purchase(What is this?)
...and I've got through a few.

Fairly tough, and very adjustable.

My previous mirror (of this type) lasted 7 years or so, and only broke on a recent encounter with some black ice (it was the first bit of the bike to hit the floor). So, when it came to buying a replacement I looked around to see if the science had move on at all - didn't look like it had, so got another of these. Roll on the next 7 years+ .


Cateye El540Rc Econom Force Bike Light - Black
Cateye El540Rc Econom Force Bike Light - Black

4.0 out of 5 stars Perfect for my road-based commute, maybe not so good for off-road, 17 Feb. 2014
Verified Purchase(What is this?)
Provides decent light for a 4xAA battery light, but compared to many Li-ion battery based lights it is quite bulky (not that it's going to put me off - but if you are looking for something bright and light there are better options out there).

There are some nice practical implications of the controls:
hold button down for 2s to switch on or off
double press button to switch to or from flashing mode
press button once to switch between high and low settings
all that means that you can switch between high and low without having to go via "off" or "flashing" - so you'll never lose sight of the road and other traffic users should have no cause to lose sight of you.

It's still a bit fiddly to control when wearing winter gloves, but then what light isn't?


Galleria SunKiss Folding Umbrella
Galleria SunKiss Folding Umbrella
Offered by Toys and Interiors
Price: £29.99

4.0 out of 5 stars Share some sun in the rain, 17 Feb. 2014
Verified Purchase(What is this?)
This review is from: Galleria SunKiss Folding Umbrella
Practical and cheery - the perfect combination.

These umbrellas are quite large, so in their folded form you'd need quite a large bag in which to put them (not really suitable for a handbag...unless its a really big handbag).

This one was bought as a gift, and having seen it in the flesh I am inclined to kit out all the women folk I know with one of these flower-based umbrellas.


MR11 Philips Master LED 12V 3w Cool White GU4 2 pin 24 Degree Beam Angle Low energy saving light bulbs lamps 12 volt "A" Energy Rated
MR11 Philips Master LED 12V 3w Cool White GU4 2 pin 24 Degree Beam Angle Low energy saving light bulbs lamps 12 volt "A" Energy Rated

1 of 1 people found the following review helpful
5.0 out of 5 stars Bright and No Obvious Radio Interference, 23 Nov. 2012
Verified Purchase(What is this?)
I have been working my way through various types and makes of MR11 LED bulbs trying to find one that is both sufficiently bright and that does not produce too much radio interference. My search is now over. Although twice the price of the MR11s I first tried this unit is superior in that it does not interfere with DAB radio and the LEDs are not exposed on the surface of the product.


LE 1.8W Brightest MR11 LED Bulbs, 20W Halogen Bulb Replacement, Flood Beam, Cool White,Pack of 2 Units
LE 1.8W Brightest MR11 LED Bulbs, 20W Halogen Bulb Replacement, Flood Beam, Cool White,Pack of 2 Units
Offered by Neon Mart
Price: £19.99

1 of 1 people found the following review helpful
2.0 out of 5 stars Too much radio interference to be useful for the home, 22 Oct. 2012
Verified Purchase(What is this?)
Product produces a decent bright light and I would have liked to have kept it, but having plugged it in I found that I could not have both light and DAB radio reception in the same room. I have various other LEDs in the room (some running off the same driver), but the DAB radio cut out every time I plugged in this bulb. So it has been returned and a refund given.


No Title Available

3 of 3 people found the following review helpful
1.0 out of 5 stars Ceased working after less than two months of infrequent use, 12 Nov. 2010
Verified Purchase(What is this?)
(Update 15 Nov 2012: This review was written 2 years ago. By chance I have noticed that the product to which it is now associated (X960 with LiIon battery, and charger) is not the product about which it was written.)

I bought this torch for emergency use, and if it turned out to be as good as the "250 Lumens" in the product name implied then I was going to buy a couple more.

The torch provides a bright, focused, white beam of light from two AA batteries. I question the "250 lumens" in the product title: I have compared this torch to a branded torch that itself is advertised as being sub-100 lumens - the light from the branded torch appears to be more intense and penetrates further. This is not to say that this product is without merit - the beam is bright, but I question the "250 lumens" tag.

The beam width is not adjustable.

The instruction booklet has no manufacturers address or web-site reference, but implies that the torch uses a CREE Q5 emitter (there's a check-box on the first inside page of the booklet with the "CREE Q5" box checked).

A quote from the instruction booklet:
"All of our products are examined carefully during production. Please be confident with our quality. If there are some problems during working, please simply repair by yourself".

I have used unbranded torches before, and they can last a long time. This one, however, lasted less than two months and has now stopped working (investigation with a multi-meter suggests a problem with contacts at the switch end of the unit). Looks like I'll be following the instruction booklet's advice after all.

Oh, and I will not be buying any more.

(It is quite possible that the unit I received is not representative of the majority of units, but we will have to wait for other reviews to verify that.)


Symmetry and the Monster: One of the greatest quests of mathematics
Symmetry and the Monster: One of the greatest quests of mathematics
by Mark Ronan
Edition: Paperback
Price: £9.99

2 of 2 people found the following review helpful
3.0 out of 5 stars Expounds the history, not the mathematics, 2 Oct. 2009
This book describes the people, places and events that form the history of the classification of finite simple groups, with a particular emphasis on one finite simple group in particular - The Monster. Mark Ronan avoids attempting to explain too much detail of the mathematics involved, instead choosing to concentrate on describing the history of the matter. Consequently the book can be read by anyone with an interest in how long lived problems such as this can be solved by passionate people, and how perseverance and inspiration can produce results.

Those wishing to gain anything more than a superficial understanding of symmetry or the classification of finite groups should look elsewhere; this is not the aim of this book. This is not, as I was rather hoping it would be, a finite simple group equivalent of Prime Obsession: Bernhard Riemann and the Greatest Unsolved Problem in Mathematics.


Timex Expedition Men's Quartz Watch with Black Dial Analogue Display and Grey Textile Strap - T425714E
Timex Expedition Men's Quartz Watch with Black Dial Analogue Display and Grey Textile Strap - T425714E
Offered by Watches2U
Price: £27.00

13 of 13 people found the following review helpful
4.0 out of 5 stars Keeps good time, but surprisingly loud, 2 Oct. 2009
Verified Purchase(What is this?)
I have now had this watch for about 6 months, and in that period have not had to correct the time once, and it is still within a few seconds of the BBC Radio beeps.

It has been into swimming pools and rivers without any apparent problems.

The plastic case make it lightweight. The fabric strap doesn't look or feel likely to tear or snap (the downfall of my previous watches!).

The watch does not track months, so the date dial has to be adjusted at the relevant days of the year.

The only mildly annoying feature of this watch is the surprisingly loud tick - it won't distract you while there is background noise, but at night you may find yourself keeping it in a draw or on the other side of the room...or possibly a different room altogether.
Comment Comment (1) | Permalink | Most recent comment: Jul 27, 2013 9:55 PM BST


Exploration of the Colorado River and Its Canyons (National Geographic Adventure Classics)
Exploration of the Colorado River and Its Canyons (National Geographic Adventure Classics)
by J.W. Powell
Edition: Paperback
Price: £9.36

4.0 out of 5 stars Good account of a fascinating journey, 30 Sept. 2009
Verified Purchase(What is this?)
If you have an interest in original exploration and adventure and/or the Colorado River, Green Rivers or Grand Canyon then you will be greatly rewarded by taking the time to read this book.

Powell sets out to explore and document an area that many thought unexplorable; the explorations spanned years and involved significant risk for Powell and his team. The end of the exploration involved both triumph and tragedy (so you'll want to read to the end).

The chapters fall into two groups: those involved with the descriptions of the journey and those that describe the geological and geographical features of the region. The geological descriptions are best read with a map (or Google Earth) to hand but these sections can be skipped by those interested only in the unfolding adventure.

There are numerous images throughout the book; some illustrate the features being described in the text, some give visual cues to the ability of the explorers to find there way up from the canyon floors into side canyons and cliff faces, others show the treacherous conditions faced on the rivers themselves.

If you trace the journey using modern maps/images/tools you will see just how different a modern version of the journey would be - many of the canyons described by Powell are no under, and where he risked his life in search of knowledge people now zip around in speed boats. Many of the places/features still exists and are so clearly described in the book that you can precisely identify them.


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