Search found 1453 matches

by axel_knutt
27 Oct 2018, 11:56am
Forum: The Tea Shop
Topic: Decibels
Replies: 21
Views: 656

Re: Decibels

I sort of half remembered from O-Level days that it was logarithmic which made me assume it was more significant that it appears. One on seventy is an increase of one seventieth, but 25% of 70 seems a lot bigger. Perhaps I've got the wrong end of the stick. As sjs says it's 25% of the power, not 25...
by axel_knutt
27 Oct 2018, 11:36am
Forum: Health and fitness
Topic: Dynamo Voltage (possible) Hazard
Replies: 7
Views: 539

Re: Dynamo Voltage (possible) Hazard

So how come an electric fence shock of about 7500 volts! directly across the chest area to a fully grounded hand does not result in any long lasting damage? Because it's not 7500V. The source voltage (EMF) might be 7500V, but the loaded voltage (PD) presented to the body depends on both the load an...
by axel_knutt
20 Oct 2018, 2:11pm
Forum: The Tea Shop
Topic: Decibels
Replies: 21
Views: 656

Re: Decibels

As a student, I was taught that the smallest change most people can hear whilst present at the time is about 1dB, but if the level changes whilst they are out of the room they won't notice anything under 3dB. From this, it's both level and frequency dependent: Sound Difference.gif The Bel is just th...
by axel_knutt
14 Nov 2017, 6:28pm
Forum: Bikes & Bits – Technical section
Topic: Crimping tools for dynamo wiring
Replies: 30
Views: 1258

Re: Crimping tools for dynamo wiring

There's no point in crimp connectors at home, they're used on production lines because they are quicker and cheaper than soldering, and require lower skilled operators. In order to get a reliable joint with a weatherproof, gas-tight seal, you need a calibrated tool, a connector that that was designe...
by axel_knutt
12 Nov 2017, 5:42pm
Forum: Does anyone know … ?
Topic: Patch recommendation...
Replies: 109
Views: 6010

Re: Patch recommendation...

drossall wrote:I may be the only one, but I swear by the Weldtite strip that you cut into your own pieces. Sticks better than anything I know.

You're not the only one. I've never had any problem with it, so I've never seen the need to use anything else.
by axel_knutt
12 Nov 2017, 4:29pm
Forum: Does anyone know … ?
Topic: 50 year old newcomer
Replies: 22
Views: 1727

Re: 50 year old newcomer

I'm 6' 6", and ride a 64cm frame. It's barely big enough, there's still 5" of seatpin exposed, and I've struggled to find stems long enough on occasion.
by axel_knutt
11 Nov 2017, 1:27pm
Forum: Does anyone know … ?
Topic: Shoes For Use With Toeclips And Straps - Exustar?
Replies: 12
Views: 1118

Re: Shoes For Use With Toeclips And Straps - Exustar?

I tried a pair, but they didn't fit snugly enough over the instep. Liveable with whilst on the bike, but too much heel-lift for walking.
by axel_knutt
11 Nov 2017, 11:09am
Forum: Health and fitness
Topic: Anticoagulants
Replies: 9
Views: 767

Re: Anticoagulants

As you appear to be aware, AF increases your risk of having an ischaemic stroke, and anticoagulation reduces the risk of an ischaemic stroke at the price of increasing the risk of a haemorrhagic stroke. Making an optimum decision therefore entails comparing the risk of each. Your risk of ischaemic s...
by axel_knutt
25 Oct 2017, 4:36pm
Forum: The Tea Shop
Topic: Tell me if I'm getting old and grumpy or is the World just getting stupider??
Replies: 30
Views: 1668

Re: Tell me if I'm getting old and grumpy or is the World just getting stupider??

Many is the time I've stood and watched them fold the sticker so that half the barcode is on one side of the envelope and half on the other, rather than just position it so that the BC is all on one side. I'd like to watch them trying to scan it.
by axel_knutt
23 Oct 2017, 11:27pm
Forum: The Tea Shop
Topic: plague of slugs
Replies: 43
Views: 1528

Re: plague of slugs

Tangled Metal wrote:Riding over a big slug isn't nice.

About 15 years ago, I was riding along the A30 near Lands End early one morning and the road was covered with a carpet of slugs, thousands upon countless thousands of them. Yuk!
by axel_knutt
22 Oct 2017, 5:34pm
Forum: On the road
Topic: Reckless behaviour
Replies: 14
Views: 1033

Re: Reckless behaviour

Wot, no helmets?
by axel_knutt
22 Oct 2017, 2:39pm
Forum: Does anyone know … ?
Topic: Smell the mit
Replies: 15
Views: 1073

Re: Smell the mit

Mine get washed twice a week usually (when the rest of the kit hits the washer) not because they smell but because I want to lose the accumulated snot! I found that the problem with snot was the bars. Gloves will go in the washing machine, but my bars once got to a point where they smelt like a tra...
by axel_knutt
21 Oct 2017, 5:00pm
Forum: Bikes & Bits – Technical section
Topic: Lighting page updated (and CJ mentioned) but.....
Replies: 20
Views: 1388

Re: Lighting page updated (and CJ mentioned) but.....

"Approved" is what's compulsory if you wish to cycle at night, legal is what's not prohibited (putting a red light on the front is prohibited, for example). In 2005, SI2559 revoked the ban on flashing lights, which was widely misinterpreted as making all flashing lights approved. An approv...
by axel_knutt
19 Oct 2017, 3:34pm
Forum: Touring & Expedition
Topic: Hotels/B&Bs but would prefer own hot cooked meals
Replies: 34
Views: 2373

Re: Hotels/B&Bs but would prefer own hot cooked meals

horizon wrote:I did stay in accommodation recently in Portsmouth which was like a normal B&B but had no breakfast but did have a shared kitchen - that is very unusual though.

Maes Y Mor in Aberystwyth is another like that. "Normal" bedrooms, with a self catering kitchen.
by axel_knutt
18 Oct 2017, 11:55pm
Forum: The Tea Shop
Topic: Deer in the garden
Replies: 22
Views: 929

Re: Deer in the garden

The only time I've seen a deer in the garden was at High Close hostel, I saw it from the kitchen window as I was getting breakfast. I saw a muntjac running along the pavement at the side of a busy road in town once.