Things you always wanted to know the answer to [Vol. 3]
Discussion
In a professional golf tournament there's a fixed pot of prize money with the winner pocketing a certain amount. Fair enough, but if there's, say, £100k for second place and theoretically ten people could tie second, do they get £100k each?
In another example, two people come second, the next person (or people) is/are classed as fourth. So what happens to the third placed cash? Does it get added to the fourth place purse and then split?
In another example, two people come second, the next person (or people) is/are classed as fourth. So what happens to the third placed cash? Does it get added to the fourth place purse and then split?
MissChief said:
The tilt stays the same so in the winter the northern hemisphere is tilted away so it's colder as were slightly further away from the sun. In the summer were tilted slightly closer so it's warmer.
It's not the distance that matters, it's the angle that sunlight falls on us. In the summer, the light comes in closer to perpendicular (the sun is higher in the sky) so we get more of the suns energy. In the winter, the sun is lower and we get less energy from a more glancing blow, so we don't warm up as much.MissChief said:
In a professional golf tournament there's a fixed pot of prize money with the winner pocketing a certain amount. Fair enough, but if there's, say, £100k for second place and theoretically ten people could tie second, do they get £100k each?
In another example, two people come second, the next person (or people) is/are classed as fourth. So what happens to the third placed cash? Does it get added to the fourth place purse and then split?
I'll use your 2nd example as it's simpler, the two tied for 2nd split 2nd and 3rd prize money between them, 4th gets 4th prize money. 1st example add up the prize money 2nd to 10th then split evenly between the 9 tied players In another example, two people come second, the next person (or people) is/are classed as fourth. So what happens to the third placed cash? Does it get added to the fourth place purse and then split?
MissChief said:
deeen said:
Dr Jekyll said:
Why does the tilting of the earths axis that causes the seasons take exactly the same time to repeat itself as the earth takes to go round the sun?
The "tilt" doesn't move or change, it's the fact that we orbit the sun while tilted that causes the seasons. I think.Vipers said:
Why do cars have three point seatbelts and planes have lap belts.
If as we know, lap belts are bloody dangerous in cars, why not so in planes.
Same as they tell you to assume the head between your legs position, kill you faster if you are going to crash. Seat belt really just to stop you flying about in turbulence and keep you seated during take off and landing. If you hit something hard at speed a full body harness wouldn't save you.If as we know, lap belts are bloody dangerous in cars, why not so in planes.
Crusoe said:
Vipers said:
Why do cars have three point seatbelts and planes have lap belts.
If as we know, lap belts are bloody dangerous in cars, why not so in planes.
Same as they tell you to assume the head between your legs position, kill you faster if you are going to crash. Seat belt really just to stop you flying about in turbulence and keep you seated during take off and landing. If you hit something hard at speed a full body harness wouldn't save you.If as we know, lap belts are bloody dangerous in cars, why not so in planes.
bazza white said:
Can birds easily tell the difference between cats and rabbits or do they just learn a friendly rabbit. Loads of random birds will happily drop from a height amd land in the garden feet away from our rabbit and start eating away.
Of course they can. "Friendly rabbit" is that as opposed to a "Psychopathic bird eating rabbit"?Birds can also tell when a human is carrying a gun, and crows for example are clever enough to realise that if two people go into a hide and only one comes out there's still someone left in their. Sneaky buggers!
Hugo a Gogo said:
Asterix said:
Dishwasher - why does the water evaporate from crockery & glass leaving them nice and dry yet tupperware and plastic always has water left on them?
i always think it's down to them getting hot and staying hot, plastic cools down quickerI shall have to do some further hands-on research in this area...
bazza white said:
Can birds easily tell the difference between cats and rabbits or do they just learn a friendly rabbit. Loads of random birds will happily drop from a height amd land in the garden feet away from our rabbit and start eating away.
It's partly the eye position, predators such as cats have the eyes facing forwards for hunting efficiency, herbivores such as rabbits have the eyes on the side of the head for better all round vision to spot predators. So if you're a bird coming in to land and see a mammal, you can get a good idea of if it's dangerous or not.walm said:
Wind can cause currents.
As can temperature differentials due to weather, seasons, geological features.Nom de ploom said:
Would the gravtitaional effects of faster or slow spinning have made a difference though? if the earth span faster would life evolve differently to only say, reach a maximum size or mass?
I don't think the rotational forces are significant relative to the gravitational, probably we would need a large change in speed to make a difference only due to the forces involved, unless you start considering the effect on the oceans and atmosphere, both lunar and just from it going round really fast, probably the sea would slosh about a bit?Edited by scarble on Tuesday 9th June 11:52
Sir Humphrey said:
How does Google's reverse image search work?
Photos have EXIF information
Rabbit Supper by Alan Tait, on FlickrE.g. if you hit on my photo linked here you can scroll down and look at the Show EXIF.
This is like a finger print for the photo that Google can use to trace it.
For that one you get:
Nikon D90
18-135mm f/3.5-5.6
ƒ/5.6
134.5 mm
1/160
400
Flash (auto, did not fire)
Hide EXIF
Make - NIKON CORPORATION
Orientation - Horizontal (normal)
X-Resolution - 300 dpi
Y-Resolution - 300 dpi
Software - ViewNX 1.1 W
Date and Time (Modified) - 2012:11:17 17:49:56
White Point - 0.313 0.329
Primary Chromaticities - 0.64 0.33 0.21 0.71 0.15 0.06
YCb Cr Coefficients - 0.299 0.587 0.114
YCbCr Positioning - Centered
Reference Black White - 0 255 0 255 0 255
ISO Speed - 400
Exif Version - 0220
Date and Time (Original) - 2012:11:17 15:04:17
Date and Time (Digitized) - 2012:11:17 15:04:17
Components Configuration - Y, Cb, Cr, -
Exposure Bias - 0 EV
Max Aperture Value - 5.7
Metering Mode - Multi-segment
Light Source - Unknown
Sub Sec Time - 00
Sub Sec Time Original - 00
Sub Sec Time Digitized - 00
Flashpix Version - 0100
Color Space - Uncalibrated
Sensing Method - One-chip color area
File Source - Digital Camera
Scene Type - Directly photographed
CFAPattern - [Green,Blue][Red,Green]
Custom Rendered - Normal
Exposure Mode - Auto
White Balance - Auto
Digital Zoom Ratio - 1
Focal Length (35mm format) - 202 mm
Scene Capture Type - Portrait
Gain Control - Low gain up
Contrast - Normal
Saturation - Normal
Sharpness - Normal
Subject Distance Range - Unknown
Maker Note Version - 2.10
Quality - RAW
White Balance - Auto
Focus Mode - AF-A
White Balance Fine Tune - 0 0
WB_ RBLevels - 1.63671875 1.55859375 1 1
Program Shift - 0
Exposure Difference - 0
Exposure Bracket Value - 0
Crop Hi Speed - Off (4352x2868 cropped to 4352x2868 at pixel 0,0)
Exposure Tuning - 0
Serial Number - 7463083
Color Space - Adobe RGB
VRInfo Version - 0100
Vibration Reduction - Off
Active D- Lighting - Auto
Picture Control Version - 0100
Picture Control Name - Portrait
Picture Control Base - Portrait
Picture Control Adjust - Default Settings
Picture Control Quick Adjust - n/a
Sharpness - Auto
Contrast - Auto
Brightness - Normal
Saturation - Normal
Hue Adjustment - None
Filter Effect - n/a
Toning Effect - n/a
Toning Saturation - n/a
Timezone - +00:00
Daylight Savings - Yes
Date Display Format - D/M/Y
ISOExpansion - Off
ISO2 - 400
ISOExpansion2 - Off
Lens Type - G
Flash Mode - Did Not Fire
Shooting Mode - Continuous
Lens FStops - 5.33
Contrast Curve - (Binary data 578 bytes, use -b option to extract)
Shot Info Version - 0213
Firmware Version - 1.00i
Shutter Count - 9259
Noise Reduction - Off
Color Balance Unknown - MDIxMQAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAFsuLi5d
Lens Data Version - 0204
Exit Pupil Position - 107.8 mm
AFAperture - 5.8
Focus Position - 0x04
Focus Distance - 3.98 m
Lens IDNumber - 143
Min Focal Length - 18.3 mm
Max Focal Length - 134.5 mm
Max Aperture At Min Focal - 3.6
Max Aperture At Max Focal - 5.7
MCUVersion - 145
Effective Max Aperture - 5.7
Raw Image Center - 2176 1434
Retouch History - None
Image Data Size - 7634449
Vari Program - Portrait
Multi Exposure Version - 0100
Multi Exposure Mode - Off
Multi Exposure Shots - 0
Multi Exposure Auto Gain - Off
High ISONoise Reduction - Off
Power Up Time - 2012:11:17 15:02:58
AFInfo2 Version - 0100
Contrast Detect AF - Off
AFArea Mode - Auto-area
Phase Detect AF - On (11-point)
Primary AFPoint - Bottom
AFPoints Used - Bottom
Contrast Detect AFIn Focus - No
File Info Version - 0100
Directory Number - 100
File Number - 3935
Nikon Capture Version - ViewNX 1.1 W
NEFBit Depth - 12
Light Switch - LCD Backlight
AFArea Mode Setting - Auto-area
Center Focus Point - Normal Zone
AFAssist - On
AFPoint Illumination - Auto
Focus Point Wrap - No Wrap
AELock For MB- D80 - AE/AF Lock
MB- D80 Battery Type - LR6 (AA alkaline)
Beep - Off
Grid Display - Off
ISODisplay - Show Frame Count
Viewfinder Warning - On
No Memory Card - Release Locked
Screen Tips - On
File Number Sequence - On
Shooting Info Display - Auto
LCDIllumination - Off
Easy Exposure Comp - Off
Reverse Indicators - + 0 -
Exposure Control Step Size - 1/3 EV
Center Weighted Area Size - 8 mm
Fine Tune Opt Matrix Metering - 0
Fine Tune Opt Center Weighted - 0
Fine Tune Opt Spot Metering - 0
CLMode Shooting Speed - 4 fps
Exposure Delay Mode - Off
Auto Bracket Set - AE & Flash
Auto Bracket Order - 0,-,+
Func Button - FV Lock
OKButton - Select Center Focus Point
AELock Button - AE/AF Lock
Command Dials Reverse Rotation - No
Shutter Release Button AE- L - Off
Metering Time - 16 s
Remote On Duration - 5 min
Self Timer Time - 5 s
Self Timer Shot Count - 4
Playback Monitor Off Time - 20 s
Image Review Time - 1 min
Menu Monitor Off Time - 1 min
Shooting Info Monitor Off Time - 20 s
Flash Shutter Speed - 1/60 s
Internal Flash - TTL
Manual Flash Output - Full
Repeating Flash Output - 1/32
Repeating Flash Count - 10
Repeating Flash Rate - 10 Hz
Flash Warning - On
Commander Internal TTLComp - 0
Modeling Flash - Off
Auto FP - Off
Commander Group A_ TTLComp - 0
Commander Group B_ TTLComp - 0
Live View AF - Wide Area
Interop Index - R98 - DCF basic file (sRGB)
Interop Version - AAE=
Image Width - 160
Image Height - 104
Bits Per Sample - 8 8 8
Compression - Uncompressed
Photometric Interpretation - RGB
Strip Offsets - 10963
Samples Per Pixel - 3
Rows Per Strip - 104
Strip Byte Counts - 49920
Planar Configuration - Chunky
Camera ID - 72157605564604036
Camera Type - Digital SLR
Crusoe said:
Photos have EXIF information
Rabbit Supper by : Alan Tait, on Flickr
E.g. if you hit on my photo linked here you can scroll down and look at the Show EXIF.
This is like a finger print for the photo that Google can use to trace it.
No, they use actual image recognition.Rabbit Supper by : Alan Tait, on FlickrE.g. if you hit on my photo linked here you can scroll down and look at the Show EXIF.
This is like a finger print for the photo that Google can use to trace it.
How does Google come up with visually similar images?
Oddly enough it seems flickr actually strips the exif even, at least if you use the one from the zoomy thingy, I used firebug to get the image url and threw it into Jeffrey's exif viewer here:
http://regex.info/exif.cgi?dummy=on&imgurl=htt...
probably could be tested by stripping the exif off an image but I can't do that right now.
Edited by scarble on Tuesday 9th June 12:05
Google also have a good recognition program (as used to blur out faces on street map and number plates on cars etc.) They can probably find similar pictures by description, colour, and shape too. Know the facebook version can recognize the people in photos from images they were tagged in previously though I think they turned that option off as people were getting a bit wary of big brother and people don't always want to be recognized (think Google glass can do similar).
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