Re: Deer
- To: Multiple recipients of list <i*@rt66.com>
- Subject: Re: Deer
- From: "* I* J* <j*@ix.netcom.com>
- Date: Wed, 7 Jan 1998 20:17:50 -0700 (MST)
ECPep wrote:
>
> Actually deer, particularly the cute babies,
> can crawl under a fence wire. That is the only intrusion I have has since
> fencing. We stopped that by having the lowest wire hot in the night when the
> cats are in the house.
Crawl??? Hah. My wife once spent a summer in the field working for the
forestry service in Oregon (or northern CA I forget which). She said
deer would run at full speed under any fence higher off the ground than
8 - 12", sort of like a baseball player sliding into 2d base and then
running on to 3d.
Of course they weren't getting zapped at the same time.
And
On this day in 1610:
Galileo Galilei discovered the first 4 Jupiter satellites, Io, Europa
and Ganymede and Callisto. The four great moons of Jupiter are called
the Galilean satellites after their discoverer.
In his first attempt to apply the newly invented telescope to astronomy,
discovered the four large satellites of Jupiter. He correctly
interpreted their motion as being that of objects circling Jupiter,
establishing the first clear proof of celestial motion around a center
other than the Earth. The discovery of these satellites played an
important role in supporting the Copernican revolution that formed the
basis for modern astronomy.
A few decades later the satellites of Jupiter were used to make the
first measurement of the speed of light. Observers following their
motions had learned that the
satellite clock seemed to run slow when Jupiter was far from Earth and
to speed up when the two planets were closer together. In 1675 the
Danish astronomer, Ole
Roemer, explained that this change was due to the finite velocity of
light.
The satellites only seemed to run slow at large distances because the
light coming from them took longer to reach Earth. Knowing the
dimensions of the orbits of Earth and Jupiter and the amount of the
delay (about fifteen minutes), Roemer was able to calculate one of the
most fundamental constants of the physical universePthe speed of light
(about 300,000 kilometers per second).
John | "There be dragons here"
| Annotation used by ancient cartographers
| to indicate the edge of the known world.
John Jones, jijones@ix.netcom.com
Fremont CA, USDA zone 8/9 (coastal, bay)
Max high 95F/35C, Min Low 28F/-2C average 10 days each
Heavy clay base for my raised beds.
