USA news on Youtube Feb 18 2019

 Sundials are at risk of dying out, a Cambridge expert has suggested, as he lamented the "extraordinary challenge" of getting young people interested in the timepieces

 Dr Frank King estimated sundial experts were now down to their last 100 around the globe

   He said few young people were rigorously tackling the maths required to design the timepieces - with British schools "scraping the surface" when it came to algebra, trigonometry and geometry

    The sundial enthusiast, 76, a former computer science lecturer at Cambridge, is one of the leading experts in the field and designed iconic British timepieces including the 22-metre Noon Mark on the London Stock Exchange, which measures 22-metres long, and the Golden Jubilee sundial outside the House of Lords

   But he said there were few left who knew the science behind how sundials work, or even their religious origins

   He told the BBC: "Sundials are old hat. Those few people who are making innovative sundials are making extensive use of computerised tools to design them - that's a good thing

 "To get young people interested in sundials is extraordinarily challenging.'  Dr King, who is also chairman of the British Sundial Society, said the group had 600 members in its heyday, as recently as 1995

Numbers have now more than halved with Italy and USA retaining some of their own member experts

   Sundials contain a gnomon, a thin rod, that casts a shadow onto a platform etched with different times

  As the sun changes during the course of the day, the shadows change as well, reflecting a change in time  As the sun changes during the course of the day, the shadows change as well, reflecting a change in time

The latitude and gradient help decide the precise location, and the gnomon should be pointing at the north celestial pole

Their accuracy can vary depending on the time of year.   Dr King who is the university bellringer at Cambridge and the keeper of the sundial on Great St Mary's Church, said those with sundial expertise could design spaceships and power driverless cars - because the mathematical insight is akin to the one used for GPS technology

    "Whilst we can live without sundials, I'm worried we cannot live without communication satellites and someone needs to have the knowhow to do that," he said

   "I don't think education coming through schools these days is satisfactory to replenish people writing code for communication satellites or driverless cars or the rest of it

"

For more infomation >> Sundials are at risk of dying out because young people aren't interested, Cambridge expert suggests - Duration: 3:58.

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'The Bachelor' Spoilers: Can Colton trust Cassie Randolph and Caelynn Miller-Keyes - Duration: 4:55.

The Bachelor spoilers reveal Colton Underwood's trust issues with the bachelorettes will explode.

In particular, Cassie Randolph and Caelynn Miller-Keyes genuineness will be questioned.

The ex-NFL player will continue to receive warnings regarding the motives of his Bachelor clan.

But will he take heed? The Bachelor Spoilers: Colton's Triple Warnings Last week on The Bachelor,

Colton Underwood received a total of three warnings regarding making the right decision.

Sydney Lotuaco, Katie Morton and Demi Burnett all warned him about the motives of other contestants.

While the girls did not specify any bachelorettes in particular,

they did tell him that some of them may not be there for the right reasons.

After receiving three warnings from three different people, The Bachelor finally realized there may be some truth to it all.

At first, he initially thought Sydney was referring to Demi being present for the wrong reasons.

But then once he eliminated Demi and she stated the same thing, he questioned his thought process.

The moment he eliminated Katie Morton, she repeated what Sydney and Demi previously stated.

He became very confused at this point. This flabbergasted The Bachelor.

Understandably, his suspicions were at an all time high.

The Bachelor Spoilers: Kirpa Warns Colton about Cassie It's no secret Colton Underwood is fond of Cassie Randolph.

The pair finally shared a romantic one-on-one date on a recent episode.

The reality star is certainly smitten for her.

However, on the next episode of The Bachelor, Colton will receive devastating news.

Contestant Kirpa Sudick will tell him Cassie's intentions may not be genuine.

Once Cassie becomes notified of Kirpa's conversation, she will be infuriated.

Cassie will angrily tell Kirpa she should've minded her own business. The girls will bicker back-and-forth.

But Kirpa will believe she did the right thing.

Obviously, she will appear to be genuinely concerned about The Bachelor's heart.

But flames will be ignited with this altercation.

The Bachelor Spoilers: Tayshia's Warnings Tayshia Adams will additionally tell Colton Underwood to be mindful of his choices.

She will inform him that Caelynn Miller-Keyes and Cassie Randolph aren't ready.

Therefore, Colton will understandably become even more concerned.

He has a strong relationship with Tayshia Adams. Therefore, he respects her opinion.

Additionally, The Bachelor also has strong relationships with Cassie and Caelynn.

At this point, Colton's mind will be blown.

What will he do? Colton Underwood- More Confused Than Ever All in all,

Colton Underwood will be very concerned regarding his final ladies.

The Bachelor has previously stated he is truly looking for love.

He doesn't want to deal with being a "back up plan." However, his worst fears may potentially come true if he doesn't listen to the warnings.

Will he make the right decision? Or will he go with his gut, despite the multiple conversations he's had with the bachelorettes?