Cooking For Engineers Forum Index Cooking For Engineers
Analytical cooking discussed.
 
 FAQFAQ   SearchSearch   MemberlistMemberlist   UsergroupsUsergroups   RegisterRegister 
 ProfileProfile   Log in to check your private messagesLog in to check your private messages   Log inLog in 

Equipment & Gear: Understanding Blender Specifications
Goto page Previous  1, 2
 
Post new topic   Reply to topic    Cooking For Engineers Forum Index -> Comments Forum
View previous topic :: View next topic  
Author Message
ParrotSlave



Joined: 08 Nov 2012
Posts: 2
Location: Houston, TX

PostPosted: Thu Nov 08, 2012 10:37 pm    Post subject: Reply with quote

If the glasses are so heavy that they're going to sink your nose into the nasal cavity, then I could understand going with plastic. Mine are -4.25 -50 x130 (right) and -3.75 -50 x035 (left) [sphere, cylinder, axis]. I have tried various plastic lenses several times, and what has driven me crazy is not chromatic aberration so much as the distortion at the edge of the visual field, which I find particularly disturbing when driving, especially at night. It's getting harder to find glass lenses, but I do note a Canadian company that still has high index ultra thin glass lenses that should work well in cases of extreme myopia: http://www.visionsofcanada.com/csi/awb/voc/high-myopia.asp. A separate problem is that the opticians tend to try and sell smaller lenses in glass, since they worry about the weight, and, unfortunately, when one is used to gigantic lenses, a shift in lens size can create difficulty in adjusting. I find myself still reverting to a 1996 pair of no-line trifocals with PhotoGray in Flexon frames--the best pair I ever had, also, coincidentally, the heaviest, and with the largest lenses. Opticians seem to have no understanding of physics as they try to "convert" me to the plastic religion.
Back to top
View user's profile Send private message
Jim Cooley



Joined: 09 Oct 2008
Posts: 337
Location: Seattle

PostPosted: Fri Nov 09, 2012 6:15 pm    Post subject: Reply with quote

Fascinating! Thanks for the links.
Back to top
View user's profile Send private message
.
Guest





PostPosted: Tue Jan 14, 2014 12:54 am    Post subject: Max power Reply with quote

A correction to your statement about max/peak power. The maximum power of an electric motor occurs at 50% speed not right before stall. The maximum torque occurs at stall.
Back to top
JohnGalt
Guest





PostPosted: Mon May 26, 2014 5:51 pm    Post subject: Boiling water in blenders. Reply with quote

I, personally, have started with room temperature water (70F) and brought it to boiling (212F) in a Blendtec. I used to sell them and I'm a tea drinker. No hotplates in the demo booth.
Back to top
Jeff
Guest





PostPosted: Sun Aug 24, 2014 3:45 pm    Post subject: Blinder specifications Reply with quote

Why the discrepancy between stated hp and watts. If 1 hp = 746 watts, can you have a 1800 watt unit with 3 hp (ie. Cleanblend blinder)?
Back to top
Dilbert



Joined: 19 Oct 2007
Posts: 1018
Location: central PA

PostPosted: Sun Aug 24, 2014 4:50 pm    Post subject: Reply with quote

if you read the original article and some of the follow-up, you'll see that manufacturers play with numbers to make things look really good.

the three horsepower claim is most likely what is described as 'peak' hp - not much relationship to actual use.

'modern day' kitchens typically have 20 amp circuits in the kitchen, older homes perhaps 15 amps. you can figure the available wattage from there - something advertised as 3500 watts sounds good, but probably will trip breakers under (heavier) load.
Back to top
View user's profile Send private message
Jim Cooley



Joined: 09 Oct 2008
Posts: 337
Location: Seattle

PostPosted: Mon Aug 25, 2014 11:29 am    Post subject: Reply with quote

My friend was telling me his induction cooker (common here in India) is 1800 watts.
I would just kill to play around with that and a cast iron pan...
Back to top
View user's profile Send private message
Display posts from previous:   
Post new topic   Reply to topic    Cooking For Engineers Forum Index -> Comments Forum All times are GMT
Goto page Previous  1, 2
Page 2 of 2

 
Jump to:  
You cannot post new topics in this forum
You can reply to topics in this forum
You cannot edit your posts in this forum
You can delete your posts in this forum
You cannot vote in polls in this forum


Powered by phpBB © 2001, 2005 phpBB Group